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International Journal for Engineering Modelling, Vol. 9 No. 1-4, 1996.

Original scientific paper

Two phase thermalhydraulic code used for fast transient calculations

Matjaž Prah ; Nuclear Power Plant Krško, Krško, SLOVENIA
Danilo Feretić ; Nuclear Power Plant Krško, Krško, SLOVENIA
Davor Grgić ; Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb, CROATIA

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Abstract

The thermalhydraulic model was developed as a base for a fast running computer code for the purpose of a nuclear power plant primary system simulation. The model is based on the drift flux theory and integrated momentum equation. It is a nonhomogeneous four-equation model of a two-phase flow. On the basis of the developed theoretical model, the computer code in FORTRAN 77 for PC 386/486 compatible computers was prepared. The results of simulation are quite good and the accuracy of the program for selected test cases is comparable to the accuracy of RELAP5/mod2 computer code with CPU time reduction.

Keywords

Hrčak ID:

319420

URI

https://hrcak.srce.hr/319420

Publication date:

22.12.1996.

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