A Continuity-Based Semi-implicit Scheme for Transient Two-Phase Flows

被引：3
作者：
Yoon, H. Y. [1 ]
Jeong, J. J. [1 ]
机构：
[1] Korea Atom Energy Res Inst, Taejon 305353, South Korea
来源：
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2010年 / 47卷 / 09期
基金：
新加坡国家研究基金会;
关键词：
numerical method; semi-implicit; two-fluid model; unstructured grid; NUMERICAL SCHEME; SYSTEM;
D O I：
10.3327/jnst.47.779
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A robust and fast-running numerical method is presented for multidimensional two-phase flows. It is based on a semi-implicit method, where the momentum equation is solved explicitly and the pressure equation is derived by combining the momentum and continuity equations. The energy equation is decoupled from the pressure equation so that the coefficient matrix of the pressure equation is symmetric. The finite volume method with an unstructured grid is used for the discretization of the governing equations for a complex geometry. The present method is verified through a set of conceptual problems and applied to the analysis of the small-break loss of coolant accident of an integral-type reactor.
引用
收藏
页码：779 / 789
页数：11
相关论文
共 17 条
[1]  
Amsden A., 1970, SMAC METHOD NUMERICA
[2]  
Caretto L.S., 1972, P 3 INT C NUM METH F
[3]  
Chang M.H., 1999, P GLOB 99 INT C FUT
[4]  
CHO HK, 2008, P KOR NUCL SOC AUT M
[5]   Thermal hydraulic calculation in a passive residual heat removal system of the SMART-P plant for forced and natural convection conditions [J].
Chung, YJ ;
Yang, S ;
Kim, HC ;
Zee, SQ .
NUCLEAR ENGINEERING AND DESIGN, 2004, 232 (03) :277-288
[6]   Notes on the implementation of a fully-implicit numerical scheme for a two-phase three-field flow model [J].
Frepoli, C ;
Mahaffy, JH ;
Ohkawa, K .
NUCLEAR ENGINEERING AND DESIGN, 2003, 225 (2-3) :191-217
[7]   NUMERICAL FLUID DYNAMICS CALCULATION METHOD FOR ALL FLOW SPEEDS [J].
HARLOW, FH ;
AMSDEN, AA .
JOURNAL OF COMPUTATIONAL PHYSICS, 1971, 8 (02) :197-&
[8]   Prediction of dryout and post-dryout heat transfer at high pressures using a one-dimensional three-fluid model [J].
Jayanti, S ;
Valette, M .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2004, 47 (22) :4895-4910
[9]   A semi-implicit numerical scheme for a transient two-fluid three-field model on an unstructured grid [J].
Jeong, J. J. ;
Yoon, H. Y. ;
Cho, H. K. ;
Kim, J. ;
Park, I. K. .
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2008, 35 (05) :597-605
[10]   A semi-implicit numerical scheme for transient two-phase flows on unstructured grids [J].
Jeong, J. J. ;
Yoon, H. Y. ;
Park, I. K. ;
Cho, H. K. ;
Kim, J. .
NUCLEAR ENGINEERING AND DESIGN, 2008, 238 (12) :3403-3412
12