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A Numerical Simulation of Swirling Two-Phase Flow in BWR Steam-Water Separator and Its Optimization

[+] Author Affiliations
Haruo Terasaka, Sensuke Shimizu, Minoru Kawahara

Tohoku University, Sendai, Japan

Paper No. FEDSM2003-45185, pp. 1371-1378; 8 pages
doi:10.1115/FEDSM2003-45185
From:
  • ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
  • Volume 1: Fora, Parts A, B, C, and D
  • Honolulu, Hawaii, USA, July 6–10, 2003
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3696-7 | eISBN: 0-7918-3673-8
  • Copyright © 2003 by ASME

abstract

An advanced numerical method based on the two-fluid model has been developed. The solution method presented here is an extension of the SIMPLEST scheme, a fully implicit scheme for single-phase flow analysis. It is robust and unconditionally stable, and therefore it enables us to use a very large time step size. This feature is suitable for steady and/or slow transient flow analyses. Furthermore, it enhances numerical stability during rapid transient calculations. By using this method, swirling gas-liquid flow in a steam-water separator of Boiling Water Reactors (BWRs) was calculated and the hydrodynamics characteristics were investigated for optimization.

Copyright © 2003 by ASME

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