Symbolic Nuclear Analysis Package
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RELAP5 Plug-in Change Log

Version 3.4.6 - Released 8/18/2010:

• The Multi-dim editing dialog used for the node geometry, initial conditions, and friction properties has been updated to resolve errors in the edge editing
  panel. The column headers for the property table have been updated to display the correct coordinates for the corresponding edges, and the top-down view selection has been updated to correctly display the selected table cells.

Version 3.4.5 - Released 7/16/2010:

• An issue was resolved where rotation matrix data failed to import properly when the dyx rotation value was set to 0.0 or 1.0.
• The following updates were made to the RELAP5 model notebook export logic:
  
• The hydraulic systems statistics are now listed under the RELAP5 Model report section. These statistics now include those hydraulic systems which were not included in the list of hydro. systems defined
  in the model options component.
• The section for system components which do not reside in a subsystem is no longer exported when all components are contained in subsystems.
• The heatstructure summary section in the notebook will now display total heatstructure surface areas for the right and left surfaces and total heatstructure volume.
• An issue was resolved where the left heatstructure surface area was being set on the right surface in the heatstructure summary page of the model notebook.
• An issue was resolved which caused the heat structure radial mesh locations to export incorrectly.

Version 3.4.4 - Released 5/20/2010:

• An issue was resolved which prevented setting user-defined numerics on hydraulic component geometry attributes.
• A split-pipe renodalization option has been added to pipes and annulus components. This utility splits the component at an internal junction specified by the user creating a new single junction and pipe/annulus in the process. Heat structures connected to the component will also be split accordingly.
• The following series of updates and bug-fixes were made to the RELAP5 model notebook export logic:
  
• The heat structure notebook export logic has been modified to only display the axial power/heating table for heat structures that have a non-zero source defined. Additionally, the left and right moderator heating flags have been removed from the Cell Source Data table.
• A note was added to the heatstructure boundary condition table in the model notebook which indicates that the displayed surface area is calculated when the surface area of the boundary is not explicitly defined.
• The heatstructure notebook export logic was updated to include a hydraulic face in the boundary condition table when the boundary is connected to a hydraulic component.
• The heat structure notebook export logic was modified to improve the readability of the wall thickness value.
• The model notebook export logic has been updated to prevent creating reference links to model notes which reference signal variables.
• An issue was resolved in the notebook export of heat structure additional boundary condition values that could cause the notebook export to omit values.
• Time Dependent Volumes have been removed from the calculations for total plant volume, length, and elevation change in the hydraulic statistics section.
• The separator Cell Friction Options table was modified to only include the Non-equilibrium attribute. Additionally, CCFL and Modified PV term attributes have been removed from the Junction Geometry Data table for separators.
• The Cell Frictions Options table has been removed from the Time Dependent Volume notebook export logic. Additionally, the following values were removed from the
  Cell X-Axis Wall Friction table: Shape, Viscosity, Alt. Turbulent Wall Friction A, Alt. Turbulent Wall Friction B, and Alt. Turbulent Wall Friction C.
• The Choking Model option used by hydraulic components now displays the enumeration value with a brief description of the value. Previously, this was incorrectly displayed a boolean option where the descriptions of those boolean values were inverted.
• The Time Dependent Junction notebook export logic will no longer include the following unused tables: Geometry, Friction Data, and Initial Conditions.
• An issue was resolved for the hydraulic components Compute Wall Friction option where the description of the specified value was incorrect.
• The pipe and prizer notebook export logic was modified to omit the Additional Junction property Pullthrough Options. Also, the additional junction properties will not be exported to the notebook when the Define Control Flag Constants property is not enabled.
• An issue was resolved in the Branch, Separator, and Pipe component notebook export logic where the first junctions friction data would be exported for each of the rows in the table.
• The Time Dependent Volume will now export a Fluid Conditions section (Previously this was labeled "Initial Conditions"). The Fluid Conditions table was updated to include the search variable, condition properties, and optional boron concentration.
• The multiple junction notebook export logic was modified to use a consistent naming convention for describing the junctions.
• The pump Cell Friction Options table was modified to include only the Non-equilibrium attribute. Additionally, the Cell X-Axis Wall Friction table was removed.
• An issue was resolved for the hydraulic component Interphase Friction property where the description for value 0 was incorrect. It now indicates that the Pipe Interphase Friction Model will be applied.
• The heat structure radial geometry export logic was updated to resolve an issue where unknown values could be exported for the outside radius field.

Version 3.4.3 - Released 5/11/2010:

• References to pre-release Job Stream library classes have been removed to provide compatibility with SNAP Version 1.2.3.

Version 3.4.2 - Released 4/9/2010:

• A "Preserve Initial Conditions" option has been added to the restart ASCII import dialog. When activated, this option will prevent the initial condition data from being updated for resupplied components read from the ASCII restart file.
• The ASCII import logic for the pipe forward and reverse flow loss coefficients has been modified to resolve an issue where the loss coefficients would only be enabled if both the forward and reverse fields were non-zero.
• An issue was resolved that caused the ASCII input listing to be included in the Model Notebook export regardless of the "Include Input Listing" setting.

Version 3.4.1 - Released 3/5/2010:

• Several minor performance improvments were added to the hydraulic component Geometry dialog to increase the speed of user defined function execution.
  
• A Sub-system Integrator issue was resolved that would cause a General Table drawing to be replaced by the drawing of a hydraulic component in the imported sub-system that had the same component number.
• A copy/paste issue was resolved that caused the "SurgeLine Junction" property of PRIZER components to be lost when pasting into a different model. Note that this issue affected Sub-System Itegration in the same fashion.
• A Sub-System Integrator issue was resolved that prevented the "Update Sub-System" feature from properly reconnecting trip inputs.
• A Sub-System Import/Update check was added to indicate that Reactor Kinetics cannot be included in an imported sub-system.
• An issue was resolved where the compressor relative velocity table editor failed to set edited values.
• The view template import logic has been modified to correctly handle multiple connections between two control components.

Version 3.4.0 - Released 1/8/2010:

• The Calculation Server interaction logic was updated to support the new CAFEAN RPC communication package in SNAP 1.2.0.
• The default status of the Display Annotations property of drawn control systems is now editable as a RELAP5 plug-in property.
• The heat structure connection logic was modified to resolve an issue that could prevent changing a heat structures surface connection from one hydraulic component to a single-volume component.
• The heat structure copy-pase logic was updated to prevent the case where surface connections to single volume components would be lost.

Version 3.3.3 - Released 11/19/2009:

• The RELAP5 rstplt file editor, R5Edit,had been added to the plug-in installation package. This application was designed to reduce the overall size of a RELAP5 restart-plot file by eliminating unnecessary restart and/or plot records. It can also be used to list the contents of a RSTPLT file. R5Edit can be run in either batch mode or through a simple graphical user interface.
• The RELAP5 plug-in was updated to include I/O and editing support for specifying shared integers on plot frequency, edit frequency, and
  restart frequency.
• Control Blocks and Trip components now support displaying annotations when placed in a view. The Display Annotations property controls whether annotations are displayed. This behavior is off by default for existing models, and on by default for new components.
• Logical trips are now displayed in a view with standard logical gate symbols based on their operation.
• A check was added to provide a calculation log error message when an rdx file does not point to the proper major edit locations in the output
  file.
• An issue was resolved which prevented setting the Reactor Kinetics property reactor time.
• An issue was resolved in the reactor kinetics volume and heat weighting factors editor which prevented the deletion of table values.
• The option to include particular heatstructure nodes in the temperature calculation will now be properly displayed as disabled when referencing
  another heatstructure as a geometry reference.
• An issue was resolved that caused HTML tags to appear in the model notebook export of servo valves.
• Model notebooks will now export control systems ordered by type.
• A issue was resolved that caused one connection to be lost from the multiple junction components each time they are copied and pasted.
• An issue was resolved in the SubSystem Integrator that caused interactive variable drawings to be replaced in the updated 2D view by another component with the same component number.
• A typo was corrected in the cross section composition editor.
• General Table components were removed from the list of minor edit variables. These components can be added as either a tablein or tableout General Table Quantity which can be created in the Component Signal Variables.
• The units for the dependent variable column of general tables that use the power type have been modified to use Watts in SI, and MW British. Existing British models will automatically convert over to MW when they are opened.
  

Version 3.3.2 - Released 10/8/2009:

• The default value for the control sum block additive constant was changed to 0.0.
• The heat structure "Axial Cells / BCs" editor was updated to automatically expand all surface and cell property attribute groups.
• The Model Notebook side-by-side table export (used primarily for homologous curves) was modified to work around a converter issue that prevented the notebook from opening in MS Word.
• The Model Notebook notes export was reorganized. Notes used by one component are exported at the end of that component's section. Notes used by components in a single sub-system are included at the end of that sub-system's section. The remaining notes are exported at the end of the notebook. In addition, exported notes include a list of the components that reference the note.
• An issue was resolved in the Model Notebook export dialog that prevented Owner/Reviewer information from being excluded if it was present in the model.
• Model Notebook export was updated to include support for custom front-mater sections (such as Abstract and Intoduction) in the generated documentation. These optional sections can be inserted either before or after the table of contents.
• An issue was resolved in the SubSystem Integrator that caused incorrect components (with the same component number) to appear in the updated 2D views.
• An issue was resolved where resource imports could merge the contents of views.
• A "Take Ownership" option was added to the ASCII Import dialog to allow the owner of every imported component to be set to the current user.
• Support for the "reversed flow" flag (turbine, separator, etc.) was added hydraulic connection handling of the Sub-System Integrator.

Version 3.3.1 - Released 9/8/2009:

• The hydraulic component geometry editor tooltip and pop-up help items were updated to provide more detailed descriptions.
• An issue was resolved when selecting the Model Options node which in rare cases would cause the property view to display properties for a different component.
• The Control Function input argument dialog was updated to no longer allow specifying General Tables as input.
• The component names and descriptions properties were updated to include more appropriate pop-up help.

Version 3.3.0 - Released 8/21/2009:

• The plug-in was updated to allow a user to store and load multiple sets of initial conditions. Each of the stored initial condition sets will be saved with the model. The editor for managing model initial conditions can be accessed from either the right-click pop-up menu item of the model node or in the Model Options property view next to the Condition Sets property.
• The export logic for the Appendix K options was updated to ensure only lowercase values are written.

Version 3.2.0 - Released 7/17/2009:

• A model documentation utility has been added to the RELAP5 plug-in which provides the ability to generate a model notebook document for a given model. This document can be utilized by an analyst to help identify key portions of an input model. The notebook provides a thorough listing of both summary and detail information for each model component. The document includes a table of contents, and can be organized in two layout formats: one which closely resembles the structure of the Model Editor's Navigator, and another which groups model components by subsystem. Components are described using a combination of images, tables, statistics, reference links, and plots. Images associated with subsystems (views) and components (drawn representations of components) can be added to the model notebook. Tables are provided for tabular model data, and are collapsed by rows with similar values where appropriate. Additionally, some tables also have custom defined styles in order to provide a cohesive view of the data. Model components contain links to model notes for each of their documented attributes. Component attributes can be displayed in conjunction with any respective ownership or reviewer data. Any component properties which reference other notebook components will provide a link to the associated content next to the displayed property value. Many of the notebook components include a section that displays their ASCII representations. Options for attaching additional information to a model notebook (including a title page, classification indicator, header and footer), as well as controlling the content of the generated document (including options to toggle the export of User-Defined Numerics, component images, and component ASCII listings) are also provided.
• An issue was resolved that prevented the ASCII import routines from treating 5e-3 as .5e-3 on import though values '5-3' and '5e3' were imported correctly.
• An issue was resolved in "Update Sub-System" that caused imported components to appear multiple times in 2D Views.
• Signal variables are now sorted by name in the Navigator.
• An issue was resolved that prevented the Geometry, Initial Conditions, and Friction dialogs for hydraulic components from being properly constrained to the currently available screen space.
• An issue was resolved that prevented the 3D animation bean created via the "Copy View" feature of the 3D Hydraulic View from properly animating TDV components and components with CC numbers less than 100.
• A floating point round-off issue was resolved that caused the cells of smaller pipes to be difficult to select in hydraulic component dialogs.
• An issue was resolved where the Reactor Kinetics Control Rod Node dialog would not save edited values.
• An input connections editor was added to the properties list for trips and control blocks to allow setting these connections from the property view.
  

Version 3.1.3 - Released 5/29/2009:

• An issue was resolved that caused user defined materials to be duplicated when copying and pasting a heat structure from one model to another model that contained an identical material.
• A spacing issue was resolved in the Volume Initial Conditions dialog that caused the displayed T-FLAG options to appear garbled.
• Added a workaround to Control Block for the following CAFEAN core issue: An issue was resolved that prevented copying and pasting a component that has a connection from itself to itself.
• The pump homologous curve editing dialog was updated to include only those regime types (e.g. HAN vs BAN) and dependent variable units available for the selected curve.
• Resolved an issue where the plot file was not being copied correctly for restart jobs utilizing newer versions of RELAP5 3D.
• The copy paste logic was modified to resolve an issue which could prevent heat structure boundary hydraulic connections from being preserved when being pasted into a new model.
• An issue was resolved with the Pivot command in the 3D viewer that could cause errors when pivoting on the outlet of the last cell in a pipe.

Version 3.1.2 - Released 4/28/2009:

• A "Select Restart Components" menu item was added to the RELAP5 "Tools" pop-up menu. This menu can be used to add or remove components from the list of components that will be included in the exported restart deck.
• A feature was added to allow ASCII input models to retrieve resources from existing RELAP5 model (med) files. These resources can include views, user-defined numerics, and model documentation. This feature permits files to be easily exported to an ASCII format, edited and then reimported without losing these resources. This ASCII format includes a mapping of the numerics to the RELAP5 input along with a reference to the original med file. A special export resource option enables this functionality.
• Support was added for the PIB-based plot files created by newer versions of RELAP5 3D.
• A feature was added to support new functionality in RELAP5 3D executables. In the SNAP configuration, these executables can now be identified with the marker {3DN} at the start of the Additional Arguments field. When this marker is present, all subsequent jobs will properly differentiate between plot files and restart files. In addition, the executable will be invoked with the -stat option, allowing the generation of run-time statistics, needed to perform regression analysis in AVF.
• The geometry editor for the Annulus component was updated to allow the orientation to be reversed.
• An issue was resolved which prevented writing the mass flow initial condition data to the RELAP5 ASCII input file for valves created in the Model Editor. These components always output phase velocities regardless of the mode selected in the IC editor.
• An issue was resolved where the Branch External Junction editor was not restart editable.
• An issue was resolved where a delete card was inappropriately written to ASCII if a component created during restart editing was deleted.
• An issue was resolved which prevented importing heatstructure reflood trip data.
• An issue was resolved which prevented reading in input cards which contain no data. The cards will now replace previous cards with the same number.
• An import/export issue was resolved which resulted in the addition of extra SNAP comment tag characters.
• An issue was resolved which prevented re supplying some hydraulic components on restart import.
• The restart import logic was updated to properly handle input connections for control system components.
• An issue was resolved which prevented reading Single Junction form loss data cards CCCJ111.
• An issue was resolved which prevented exporting "Multi-Dimensional cards CCC7001 through CCC9999, Junction Initial Condition Data" with proper axial level ranges.
• The control system import logic was updated to handle importing the delete card on restart import.
• An issue was resolved which prevented junction signal variables from referencing Multi-Dim component junctions.
• An issue was resolved which caused duplicate additional case data to be written to the input file.
• The hydraulic component junction property editors were updated to display descriptive junction names in addition to the junction numbers.
• Hydraulic components were updated such that when changing the vertical orientation of a cell from an 90^o upward orientation to a 90^o downward orientation (and vice-versa), corresponding elevation change lengths will switch sign to reflect the change.
• Support was added for the 1CCCG00 General Heatstructure Data, W9/W10 left and right reflood lockout options.
• An issue was resolved which resulted in exporting invalid initial noncondensible mass fraction card numbers for some hydraulic components.

Version 3.1.1 - Released 3/23/2009:

• The RELAP5 plug-in was updated to support importing RELAP5 restart input files. The model node right-click menu now includes import restart options.
• The engineering units for plot variables were updated to support new minor edit variables available in RELAP5-3D.

Version 3.1.0 - Released 2/27/09:

• The RELAP5 plug-in was updated to support the RELAP3D version 2.6 input specification. These updates include:
  
• Noncondensible and Metal Species Mass Fractions
• Initial Mass Fraction for Each Metal Species.
• Appendix K Information
• Accident Phase Specification
• Additional Signal Variables
• Time-Dependent Volume initial conditions flag t = 7 and 9
• Time-Dependent Volume CCC0201 Additional quantities && CCC0302 Metal Mass Fractions
• Pump Index and Option new 9 word format. New pump degradation option.
• Support for Control Block type: CPLFNCTN - PVM executive input.
  
• The Axial Power/Heat Factors editor is now disabled when no Heatstructure cells with power sources are available.
• An issue was resolved where the Heatstructure power source editor was setting an incorrect enumerated value for control system power sources.
• The following signal variable descriptions were updated to match the definition provided in the user's manual: CPREFF,CPRHEAD,CPRM,CPRNRT,CPRTRQ,CPRVEL,GAMASP,VOLSTEM,QRAD
• The signal variable typecode selection dialog was updated to constrain the list of types available for the specified analysis code version.
• The heatstructure Left Surface Spacer Fraction export logic was updated to default to 1.0 when the data is not specified.
• The area change, volume momentum and choking model popup dialogs were updated to include appropriate titles and description labels.
• An issue was resolved which prevented selecting the target cell face when connecting to a Multi-Dim component.
• The Branch Junction editor was modified to facilitate selecting Multi-Dim component cells.
• An error message was added on import when a Jetmixer or Separator is the target of a connection from a junction only component.
• The drawn component "Orientation" menu has been renamed to "Drawn Orientation". Hydraulic components containing cells can no longer set their drawn orientation to up or down.
• An issue was resolved that prevented importing unix substitution variables on the 800 or 900 cards of a heatstructure.
• An issue was resolved in the Extra Deck data property which prevented deleting new line characters. Additionally, the word wrapping behavior (at 80 columns) was removed from the editor.
• An error message was added on check model to identify if a heastructure surface local boiling factor has been set to a negative number.
• An issue was resolved where setting a heatstructure surface boundary connection to a control block resulted in a 0 being written to ASCII.
• An issue was resolved which prevented exporting gap conductance data for heatstructures with only 1 axial cell.

Version 3.0.8 - Released 12/19/08:

• The export logic for the value of W9 on the Multiple Jun component geometry card was updated to properly handle the RELAP5 Mod3.3 and RELAP5-3D code versions.
• A Radiation Enclosure model check was added to test for invalid heat structures and invalid heat structure axial node numbers.
• A custom editor was added for the radiation enclosure heat structure reference axial node number.
• An issue was resolved that prevented exporting Radiation Enclosures with invalid heat structure axial node references.
• The Vessel renodalization logic for calculating liquid flow velocities on internal edges was updated.
• Error handling was added to report when an ASCII import results in too many unknown data cards.
• Support was added for the RELAP5-3D NORMVOL general table type (normalized volume versus normalized
  stem position or time).

Version 3.0.7 - Released 11/19/08:

• An issue was resolved that caused incorrect Tools and Export items to appear in the right-click pop-up menu of models that weren't the currently selected model in the Navigator.
• The import logic that creates user defined numerics when unix substitution was modified to preserve the capitalization.
• The ASCII export logic for heat structure surfaces was modified to resolve an error when the control block boundary condition is selected.
• The junction c-flag option 2 (Henry Fauske Choke Model) can be selected when editing a R5 3D v 2.3 model.
• The RELAP5 Post-processor unit conversion factors were updated to support the latest RELAP5 & RELAP5-3D versions.
• When importing initial conditions from a restart file, modified components now automatically update ASCII views, and property dialogs.

Version 3.0.6 - Released 10/24/08:

• Support was added for component sub-systems copy/paste, show ASCII, diff, and create/add to view operations.
• An issue was resolved that prevented pasting RELAP5 hydraulic components into an animation 2D View.
• An issue was resolved which prevented the Reactor Kinetics Flux Data Option and Burn-up Option from being properly imported.
• An issue was resolved which prevented the Reactor Kinetics RMBK detector data from being properly exported.
• An issue was resolved in the model report which caused the heat structure volume of cylindrical heat structures to be reported as Unknown if the inner radius of the structure was 0.0.
• An issue was resolved that caused some hydraulic system heights to be reported offset by the system primary cell reference offsets.
• An issue was resolved that caused hydraulic component drawings to behave erratically after using the Update Display Beans feature of the Animation plug-in.
• The ASCII export menu item was updated to recall the last exported file or last imported location, whichever is more recent.

Version 3.0.5 - Released 9/29/08:

• The selection entries for STDFCN control block editor were corrected.
• An issue was resolved which prevented RMBK detector data from exporting properly.
• An editor was added for the Reactor Kinetics RMBK poison flag attribute.
• The pop-up help descriptions were improved for the RMBK fluid density/void fraction, RMBK poison flag, and RMBK detector datum attributes.
• An issue was resolved which could result in cylindrical heatstructures reporting unknown volumes if the inner radius is set to 0.0.
• An issue was resolved where some hydraulic system heights were unecessarily adjusted by the system primary cell reference offset.
• An issue was resolved which prevented the Flux Data Option and Burnup Option from importing properly.
• The model report formatting logic was improved.

Version 3.0.4 - Released 9/23/08:

• An issue was resolved which prevented pasting RELAP5 2D drawn components to animation models.
• An issue was resolved which could prevented some .med files from opening properly.
• The typppwr samples were updated to be compatible with the new numerics based plug-in.

Version 3.0.3 - Released 9/19/08:

• The ASCII importer was updated to provide support for reading unix substitution variables prefixed by '-'.
• A series of UI updates were made to improve the Power History Editor.
• The Minor Edit Request selection editor sorting algorithm was updated.
• An issue was resolved which prevented relatively small legacy .med files from opening.
• The RELAP5 ASCII importer will now handle component descriptions which extend beyond the 80 character limit.
• An issue was resolved which prevented reconnecting user interactive variables in RELAP5-3D for variable names which ended with CON, ENG, ACT or MAS.
• An issue was resolved for spawned user-defined reals where parametric data would contain an unknown real entry.
• An issue was resolved in the Signal Variable Parameter editor which prevented the Property View from displaying appropriate attributes.
• An issue was resolved in Reactor Kinetics which produced errant behavior in the Neutronics Source editor.
• The Control Blocks were updated to export "null 0" when no connection exists for a required connection point.
• An issue was resolved for the Hydraulic Cell Geometry Editor which caused RELAP5 to improperly indicate errors when user-defined numerics were specified.
• The RELAP5 legacy .med importer was updated to properly handle restart conversions.
• The RELAP5 component Description Editor was updated and now includes a vertical line denoting the 80 character mark.
• A report generation issue was resolved which could cause the PDF generation tool to fail.

Version 3.0.0 - Released 9/4/08:

• The Attribute Level Documentation reference feature was added to the RELAP5 plug-in. Model Notes can now be attached directly to nearly any property in a RELAP5 model, from the global "Initial Time Value" property to the heat structure Reflood option.
• The "Comment" property was replaced by the Attribute Level Documentation feature included in SNAP 0.28.0. Any comments in existing models will be appended to the "Description" property.
• The RELAP5 plug-in was converted to use the new CAFEAN Numerics Library for sharing floating point values (reals) as well as some integers and tables(such as general tables). These shared values can be assigned to a property in the Properties View by pressing the numerics selection button to the right of the value. With this new system "Numerics" can now be copied/pasted between models along with the components that use them. Note: Models created with RELAP5 plug-in 2.5.7 and earlier will be converted to the new system the first time they're opened. This conversion includes User Defined Numerics, Views, Model Documents, etc.
• The units for the constant conductivity in material tables have been corrected.
• The Numerical Trips category was renamed to Variable Trips.
• The Branch component was modified to preserve the friction and initial conditions on the external junctions during a copy/paste operation.
• The RELAP5 Calculation Server plug-in was updated to ensure that when a RELAP5 job is deleted its 'fort.12' is deleted as well.
• Reactor Kinetics was modified to allow a value of 0.0 for the PSI property.
• The ASCII Import dialog "Unix Substitution" option was was added to the RELAP5 plug-in preferences and will be recalled each time the dialog is re-opened.
• The 1D component renodalization dialog was updated to indicate that the model has unsaved changes and to recall its previous size and location each time it is re-opened.
• The View Template export for Pipe was updated to include the Pivot option of each cell in the pipe.
• An issue was resolved that prevented heat structure initial temperatures from being initialized correctly when creating a new pipe-wall heatstructure from either a Pipe or an Annulus.
• An issue was resolved in the Power History Table dialog that prevented pasting time units into the time unit column.
• TRIPDELAY Control blocks were updated to enable selecting the reference Trip.

Version 2.5.7 - Released 6/20/08:

• An issue was resolved which prevented the retrieval of initial conditions for Multiple Junction components.
• An update was added to Reactor Kinetics which increases the efficiency of editing properties.
• An issue was resolved which prevented defining the initial vapor velocity values for multi-dim components.
• An issue was resolved which prevented the initial condition retrieval of Nodal Kinetics power.
• The Multi-Dimenstional component renodalization logic was updated to prevent errors when performing radial and azimuthal renodalization, and to prevent the loss of x direction cell lengths when merging axial levels.
• An issue was resolved which prevented signal variables from being created during a view template import.
• The logic used to locate the demultiplexer routine, r2dmx, was updated.

Version 2.5.5 - Released 5/29/08:

• Fixed an MED file read error that was introduced in Version 2.5.4.

Version 2.5.4 - Released 5/27/08:

• The ASCII labels exported for for CCFL "gas intercept" and "slope" were corrected for for the Pipe, Annulus, and Prizer components(CCC1401-1499). The export logic for the Multiple Junction component was also corrected to output the "gas intercept" and "slope" data in the proper order (CCC2KKM).
• The heatstructure signal variable HFTOT was removed from the the list of RELAP5-3D types. Additionally, the list of signal variables types is now specific to the code version and flavor of the current model. Previously, only a single list of values was provided for all of the code flavors/versions.
• The Homologous Pump Curve Editor was updated to reflect the RELAP5 regime types and descriptions provided in the user's manual.
• The Separator drawn component has been updated to provide proper scaling. The Separator right-click popup menu item "Scale Drawing" now allows horizontal and vertical scaling.
• The Pump property title "inertiaMoment" was changed to "Moment of Inertia". The description has been updated and now indicates that the value is word 6 on card series CCC0302-0304. Pump "Rated Density"
  description now indicates that the value is word 7 on card series CCC0302-0304.
• The Hydraulic component cell selection editor was updated to make the selection of cells more manageable. Hydraulic components selection is now displayed in the same dialog as the cell selection.
• The ASCII export logic was updated to resolve an issue which prevented data values from being written when the nodal kinetics card 3000008 fast time option was enabled.
• An issue was resolved which caused Branch components to lose the numbering on their external junctions when copied to a new model.
• A model check was added to ensure that more one hydraulic component contain unique component numbers.
• The drawing logic for RELAP5 Branches was updated to properly handle the view's pixels-per-meter property.
• An extraneous "Enable Large Controls" option was removed from Model Options. The expanded format option for control systems can be accessed by selecting on the appropriate Control System category node in the Navigator.

Version 2.5.3 - Released 5/7/08:

• Resolved an issue that caused edge data to become corrupt when renodalizing edges with a FA set to 0.0.
• Resolved an issue importing heat structure temperature initial conditions from restart, when the output file is in british units.
• An issue was resolved that could result in the animation of interactive RELAP5 jobs to appear as though no new data was available until the animation was reconnected.
• A model check was added to ensure that a valid nodal kinetics feedback type is selected.
• The Interactive variable name length is now constrained to 8 characters.
• The list of Hydraulic Components contained within the 2D view tool menu and toolbars will now update to include the available components appropriate for the selected code version.

Version 2.5.2 - Released 3/7/08:

• Multiple Junction components, Single volumes and Time dependent volume components were modified to prevent entering a name with more than 8 characters.
• The logic which controls retrieving initial conditions from a restart file was modified to exclude TRIP components.
• The Junction Face Placement options (CCC0113) are no longer displayed in RELAP5 models.
• An error message has been added when a junction-only component is missing its inlet or outlet connections.
• Heatstructures have been modified to report invalid hydraulic cell references or control system references as errors.
• A new dialog was added that opens when connecting to a crossflow connection on hydraulic component. This dialog allows the user to select the crossflow connection faces.
• An issue was resolved that prevented RN Species components from being copied and pasted.
• TRIP and Control block components are renumbered when pasted into a model that contains a different component numbering format.
• The time step control option has a default value of 7, when adding new time steps to a model. This enables the following features:
  1. Mass error analysis to control the time step between the minimum and maximum time step.
  2. The heat conduction/transfer time step is the same as the hydrodynamic time step.
  3. The heat conduction/transfer and hydrodynamics are coupled implicitly.
• The tool-tip help for the inside radius in the heatstructure completion dialog has been modified to indicate that the inside surface is the left boundary.
• The surface area flag for cylindrical and spherical heatstructures is initialized when creating new heat structures inside the model editor.
• An issue was resolved that prevented the initial temperature arrays for heatstructures from updating automatically when selecting a mesh reference heatstructure with a different radial nodalization.
• A new column was added to the heatstructure axial cells and surface boundary conditions dialog which includes the axial source data.

Version 2.5.1 - Released 1/31/08:

• An issue was resolved in the Detector Creation Editor which would sometimes fail to instantiate new detectors.
• The multiple junction connection dialog was modified to ensure that the junctions each have unique indexes.
• The heat structure renodalization logic has been modified to provide better support for reconnecting to a renodalized hydraulic component when the heat structure contains consecutive connections to the same hydraulic cell.
• The model editor reports an error when opening a MED file which contains an unsupported RELAP model version or code type.
• The pipe renodalization logic has been modified to preserve the edge friction data when splitting a cell.

Version 2.5.0 - Released 12/21/07:

• The undo/redo logic was updated to refresh the hydraulic component  editing dialogs for Geometry, Initial Conditions and Friction.  
  Additionally, changes made from these dialogs during restart editing are now recognized as restart changes.
• Hydraulic components have been modified to report an error message if the defined elevation change value is inconsistent with a volume's 
  inclination angle.
• An error is now reported when more than 99 minor edit requiests are specified inside a single model.
• Copy/paste functionality was added for the PUMP Homologous Curve Editor.
• The extra model data property inside model options has been modified to support exporting cards longer than 80 characters by continuing 
  the cards on multiple lines.
• Support was added for deleting components while editing a model for restart.
• An issue was resolved which caused importing external function message data to fail when message data was delimited by the @ character.
• Drawn separators were updated to now remember drawn orientation when saved.
• An issue was resolved where single volume components did not save the means by which the elevation change is defined.
• The ASCII import logic for pipe components was modified to resolve an issue when importing pipes with boron concentrations defined.
• Pump Relative Motor Torque data units are now set dimensionless.  Additionally, a problem was corrected where motor torque data exported to ASCII would exceed the number of available cards.
• Signal variables have been modified to display their name and parameter inside the Find Component dialog launched from a view.
• Interactive Control component initial value and animation feedback may now be specified during restart editing.
• The target component of control system connections created during restart editing are now included in an exported ASCII restart deck.
• RELAP5 documentation link references were added to support RELAP5 3D version 2.2.
• Hydraulic system names are now limited to 8 characters in length.
• RELAP5 extra model data can now be defined during a restart edit.
• Several dialogs were udated to ensure current edits are completed when the dialog is closed. This eliminates the need to hit the enter key prior to hitting the 'OK' or 'Close' button on the dialog.
• The model check and validation tests were updated to support the new Model Error Report dialog.

Version 2.4.0 - Released 10/23/07:

• The utility that generates 3D coordinates for hydraulic nodes inside a RELAP model was modified to allow the user to preserve existing azimuthal angles.
• The junction friction dialog was modified to only display the forward and reverse friction controller columns when the code is set to RELAP5 3.3.
• An issue was resolved that prevented opening of med files which contained feature plug-in data.
• The RELAP5 plug-in was updated to include custom documentation link support.  Each version of RELAP5 will now attempt to reference appropriate users manuals.  User's manuals for the each RELAP version can be specified by opening the model preferences dialog and selecting the "Documentation Files" property.   Selecting this property provides an editor which allows an analyst to define the location of the provided  documentation.
• Time Dependent Volumes were updated to report an error message if no table data is entered.
• The single junction ASCII output logic was modified to prevent exporting the 6 word format for Reynolds' junction friction loss when the current model flavor is not RELAP5.
• The ASCII import logic for the additional boundary condition cards on heat structure surfaces was modified to support all standard scientific notation types.
• The Branch ASCII output logic was modified to export additional loss coefficient data when Reynolds is enabled in a RELAP5 model.
• An issue was resolved where the Branch junctions editor would display incorrect junction numbering.
• An issue was resolved that caused the slope and gas interscept CCFL properties inside pipes, and pipe-style components to be reversed on  ASCII export.
• Support was added for the CCC29XX cards in Pipe and Annulus components which provides data on the curvature of each pipe cell. An editor was added to the geometry editor which edits the Pipe and  Annulus RELAP3D cell curvature data.
• An issue was resolved that prevented the file filter inside the ASCII import file selection dialog from functioning correctly.
• The RELAP5 original trip numbering format was corrected so that newly constructed Logical Trips start at 601 and Numerical Trips start at 401.
• The ASCII I/O logic for general tables was modified to add support for using user defined numerics in british models.

Version 2.3.4 - Released 8/24/07:

• Added a right-click popup plotting option which allows plotting table data in APTPlot from most RELAP5 table editors.  A plot selection dialog has been provided which defines the independent variable and associated dependent variables which are to be plotted.
• An issue was resolved that caused an error when retrieving initial condition data for a model with no heatstructures. The heatstructure temperature selection options are disabled in this case.
• An issue was resolved which caused the import of rotation matrix data to fail.
• Updated ASCII view descriptions for the Y-Length and Y-Flags data.
• The RELAP5 export file filter now locates files with the .i suffix.
• Resolved an issue which prevented pivoting the topmost cell of a pipe in the 3D hydraulic view.

Version 2.3.3 - Released 8/9/07:

• An editor was added to permit selection of individual components when updating initial conditions.
• A show usages popup item was added to material nodes in the navigator.  Selecting this feature provides a listing of those heatstuctures which use a given material.
• The control systems create view dialog is now always displayed when creating a control system view in a model where more than one system exists.
• The import restart data logic was updated to initialize the Timeof trip value.
• Initial values for control blocks and interactive variables are now properly imported from restart data.
• The valve import initial condition logic was updated.
• Support was added for Fission Product Decay type ANS 94-1.
• An issue was resolved that could prevent heat structure temperatures from initializing correctly when importing initial conditions.
• Edge Signals have been renamed to Junction Signals.

Version 2.3.1 - Released 6/30/07:

• The RELAP5 hydraulic component geometry dialogs have been updated to allow horizontal pivoting of cells. Cells located downstream from a pivoted hydraulic cell will also be affected until either another pivot is specified or no remaining hydraulic cells exist.  The pivot feature provides greater control  over the display of hydraulic components.

• An issue has been resolved that resulted in the incorrect  conversion of material conductivity and volume heat capacity values in materials when converting between SI and British units.
• An issue was resolved that caused the editor for fuel temperature reactor feedback coefficient to always display in SI units.
• An issue was resolved with the minor-edit requests and expanded  plot variable editors which could cause errors when deleting control systems.
• The minor edit request editor was modified to  exclude trips from the list of available signals.

Version 2.3.0 - Released 5/25/07:

• Added the ability to import initial conditions from a completed calculation.
• A feature was added to support both regular and expanded trip/control block numbering.  Selecting on the trip or control block navigator node provides a number format property.  Switching the format will cause each of the associated component numbers to update to reflect the selected format.  New RELAP5 models will default to the expanded numbering format. This option can be used to support legacy restart input files that were developed without the expanded number formats.
• An issue was resolved that prevented multiple junction components from redrawing properly inside a 2D view after editing its connections.
• Removed duplicated menu options which provided the ability to edit connected heatstructures from a multi-dim component.
• Resolved an issue where the check model test on a control block would fail if a max or min limit is specified without setting an initial value.
• Support was added for fine-tuned movement of graphical elements using the arrow keys.

Version 2.2.0 - Released 4/19/07:

• The material selection dialog inside the pipewall heatsructure completion dialog was modified to include a create button for adding  new materials.
• An issue was resolved with 1D renodalization that set new edge initial conditions, and flow areas to 0.0.
• The merge button in the 1D renodalization dialog was updated to ensure that it is only enabled when concurrent cells are selected.
• The fluid conditions editor for 1D hydraulic components has been modified to improve multi-cell editing and copy/paste features.
• An issue was revolved that prevented copying and pasting fluid condition types in the volume fluid condition dialog.
• The logic controlling the critical flow model input was upadated to properly handle the different versions of RELAP5.
• 3D Component renodalization was modified to preserve the hydraulic diameter of internal junctions.
• An issue that caused errors with the hydraulic connections when copying and pasting branches, pumps, accumulators, valves, time dependent junctions and single junctions was resolved.

Version 2.1.0 - Released 3/26/07:

• A force synchronized speed option was added to the Shaft component.
• A problem was corrected in the detector creation editor.
• An issue was resolved that prevented imported RELAP plot files from being plotted directly from an animation mask.
• Editor pop-up help information was updated in several locations.

Version 2.0.0 - Released 2/20/07:

• The Timestep control options can now be specifed using user-defined numerics.
• SingleVolume drawing code has been updated to resort to a default rendering size if the dimensions are too large to appear on the 2-D view.
• ASCII import routines have been updated to discard any non-ASCII characters in imported models.
• The ASCII viewer has been updated to provide a margin line indicating the RELAP5 80 column limit.
• The Import/Export file filters have been updated to always default to extension type ".i".
• The create view option on the control system node in the navigator now opens a view creation wizard that allows systems to be selected for insertion. Selected systems will be grouped together with a label and a rectangle surrounding them.
• Added support for RELAP5 parametric export.
• Model validation checks will now properly flag invalid pipe geometry.
• An issue was resolved which caused add/remove row operations to fail in the General Table data editor.
• An issue was resolved which caused add/remove row operations to fail in the TDJ variable request editor.
• Minor Edit variables are long longer deleted when pasting control variables.
• An issue was resolved where the Accumulator geometry type flag was not being exported.
• Heatstructure material references are no longer lost when copy/pasting heatstructures.
• An issue was resolved which prevented the RELAP5 plug-in from being used by the SNAP MATLAB plug-in.
• An issue was resolved which prevented UNIX substitution variables from importing/exporting correctly for sequential expansion values.
• The RELAP5 plug-in now supports three versions of the RELAP5 3D analysis code as well as RELAP5 Mod 3.3.  Any model complient with RELAP5 mod 3.3, RELAP 3D 2.2,  RELAP 3D 2.3, or RELAP 3D 2.4 can be imported into the ModelEditor.  The version number can be selected either in the import dialog, or in the batch import command.  Once imported into the model editor, a models version can be modified in the Model Options.
• The following issures were addressed for RELAP5-3D models:
  • Support has been provided for grouping RELAP5 components in the 2-D view.
  • An editor was included for editing Radionuclide Species data.
  • A format flag was added to Heatstructure surfaces which optionally forces the export of heat surface boundary data.
  • Updated the initial values for Reactor Kinetics properties.
  • Updates have been provided to support Reactor Kinetics CMFD/NEM planar ratio input.
  • Heatstructure I/O and editors have been updated to account for type 1 and type 2 radial geometry input.  Additionally, user-defined numerics can now be specified in the editing dialogs for Heatstructure radial geometry.
  • Added support for Multi-Dim component renodalization. 
  • Support has been provided for the edge signal variables:  FLENTHA and AFLOWGJ.
  • Support has been provided for the kinetics signal variables: INVKIN
  • Custom editors have been provided for selecting Multi-Dim hydraulic junctions from an edge variable.
  • The Multi-Dim hydraulic component now allows specification of CCFL models.
  • The RKRECPER kinetics signal variable now has proper I/O support.
  • An fix was provided to address an issue importing the Reactor Kinetics region void fraction input.
  • Exported hexagonal Reactor Kinetics geometry data no longer exceeds the 80 column limit.
  • A fix was added to support proper I/O of Separator maximum volume fractions.
  • I/O updates were provided to properly handle the Nodal Kinetics RBMK feedback type.
  • A fix was provided to properly handle Accumulator Reynolds coefficients.
  • Several minor issues were addressed in the Reactor Kinetic editing dialogs.
    

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