RELAP5-3D Support Software

RELAP5 Graphical User Interface (RGUI)

The interface provides a platform independent workarea for all RELAP5 work including both command line and mouse/menu control. The Isometric Image feature automatically generates a 3D picture of the plant model contained in a input file. It also provides choice of pictures (stick figure, and wireframe or solid pipes), color maps of key variables, numeric labeling, traslate/rotate/zoom of image, transient/restart advancement control, temporary trips, image export, point-and-click dynamic plots, extensive help, and many more useful features.

XMGR5 Graphing

The XMGR5 software package is derived from an XY plotting tool for Unix workstations called ACE/gr. The interactive version of ACE/gr is XMGR and includes a graphical interface to the X Windows system. Enhancements to the XMGR plotting tool have been developed which import, manipulate, and plot the output data from the RELAP5/MOD3 light water reactor thermal- hydraulic systems code and also from the MELCOR, FRAPCON, and SINDA codes, and from U.S. Nuclear Regulatory Commission (NRC) databank files. The resulting product is called XMGR5. Sections 1 through 4 of the XMGR5 Users Manual contain the instructions for operating XMGR Section 5 of the XMGR5 Users manual contains instruction in the use of extensions made to the ACE/gr software.

TMGR5 Graphing

This platform independent application renders plots of RELAP5 data from a restart plot file. It has the look, feel, and functionality of XMGR5. It also can generate the point-and-click dynamic plots for RGUI. These plots are self-updating with the latest RELAP5 transient data as it is calculated; the plotline extends with the data and the axes rescale as needed.

Nuclear Plant Analyzer (NPA)

The NPA is the worldwide industry standard interface for visualizing RELAP5 plant models. It is an older version of RGUI that has advantages and disadvantages. Advantages include smaller size, built-in icons for equipment such as pumps, greater variety of color maps, actual trip capability, and built-in graphing. Disadvantages include platform dependency, unavailability on MS-Widows platforms, 2D images, requirement for time-consuming creation a "mask" by user to render the plant model rather than automatic rendering, imoveable image, only 256 colors.

RELAP5 To Demux (R2DMX) Converter

This converter reformats a RELAP5 restart-plot file so that it can be accessed faster by the NPA and XMGR5/TMGR5.

PYGMALION

This is a program that updates the initial condition information within a RELAP5 input file. These initial conditions are obtained by performing steady-state calculations, the final results of which are written to a restart/plot (rstplt). Pygi accesses the rstplt file, obtains the final conditions for each component of the system model, and replaces the appropriate cards in the original input file with cards containing the new conditions. The new input file then accurately represents the hydrodynamic state of the problem as it was at the end of the steady-state initialization run.

R5FORCE

This program operates on hydrodynamic output from RELAP5 and computes piping hydraulic force/time histories for input into various structural analysis programs.