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.
A Numerical Simulation of Swirling Two-Phase Flow in BWR Steam-Water Separator and Its Optimization
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Terasaka, H, Shimizu, S, & Kawahara, M. "A Numerical Simulation of Swirling Two-Phase Flow in BWR Steam-Water Separator and Its Optimization." Proceedings of the 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. pp. 1371-1378. ASME. https://doi.org/10.1115/FEDSM2003-45185
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