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Idaho National Laboratory

Technologies Available for Licensing

Information Technology

RELAP5-3D Graphical User Interface

Related Patents:  Copyright Asserted

Contact: Gary W Smith

Phone: (208) 526-3780

E-mail:  Send E-mail

The RELAP5-3Dİ code has been developed for best-estimate transient simulation of light water reactor coolant systems during postulated accidents. The RELAP5-3Dİ version contains several important enhancements over previous versions of the code. The most prominent attribute that distinguishes the RELAP5-3Dİ code from the previous versions is the fully integrated, multi-dimensional thermal- hydraulic and kinetic modeling capability. This removes any restrictions on the applicability of the code to the full range of postulated reactor accidents. Enhancements include a new matrix solver for 3D problems, new thermodynamic properties for water, and improved time advancement for greater robustness.