1. NAME AND TITLE
JPHYDRO: Voids and Flow Velocity in Steady-State BWR System.
2. CONTRIBUTOR
Japan
Atomic Energy Agency, Tokai, Ibaraki Japan through the OECD Nuclear Energy
Agency Data Bank, Issy-les-Moulineaux, France.
3. CODING LANGUAGE AND COMPUTER
Fortran IV; IBM 360 Series (P00594I036000).
4. NATURE OF PROBLEM SOLVED
JPHYDRO calculates distributions of voids and flow velocities in the natural or forced circulation systems of a BWR type reactor in steady state.
5. METHOD OF SOLUTION
In formulating the various types of pressure losses the method described in ANL-6063 is used, while the model proposed by G.W. Maurer is employed in considering the process of void formation.
In the case of forced circulation, flux or pressure option can be used.
6. RESTRICTIONS OR LIMITATIONS
maximum
number of fuel assemblies 15
maximum number of mesh points 51
7. TYPICAL RUNNING TIME
Less than 1 min.
8. COMPUTER HARDWARE REQUIREMENTS
IBM 360 (32k core storage).
9. COMPUTER SOFTWARE REQUIREMENTS
IBM 360 Operating System.
10. REFERENCES
a) Included Documentation:
JAERI-1108 (Translated).
11. CONTENTS OF CODE PACKAGE
The package is distributed on a CD with a compressed zip file including source files, sample problem data, output, and documentation.
12. DATE OF ABSTRACT
November 2013.
KEYWORDS: BWR REACTORS, COOLANTS, FLOW RATE, PRESSURE GRADIENTS, STEADY-STATE CONDITIONS