A Numerical Study of Two-Fluid Models with Pressure and Velocity Relaxation

作     者：Svend Tollak Munkejord 

作者机构：SINTEF Energy ResearchSem Sælands veg 11NO-7465 TrondheimNorway 

出 版 物：《Advances in Applied Mathematics and Mechanics》 (应用数学与力学进展（英文）)

年 卷 期：2010年第2卷第2期

页      面：131-159页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financed by SINTEF Energy Research and the Research Council of Norway 

主　　题：Two-phase flow two-fluid model MUSTA scheme pressure relaxation velocity relaxation 

摘      要：This paper presents a study of pressure and velocity relaxation in twophase flow *** of the present observations have been made elsewhere,and the purpose of the paper is to strengthen these observations and draw some *** is numerically demonstrated how a single-pressure two-fluid model is recovered when applying instantaneous pressure relaxation to a twopressure two-fluid ***,instantaneous velocity relaxation yields a driftflux *** is also shown that the pressure relaxation has the disadvantage of inducing a large amount of numerical *** comparisons have been conducted by using analogous numerical schemes,and a multi-stage centred(MUSTA)scheme for non-conservative two-fluid models has been applied to and tested on the two-pressure two-fluid *** for other,previously tested two-phase flow models,the MUSTA schemes have been found to be robust,accurate and ***,compared to their Roe reference schemes,they consistently have a lower computational efficiency for problems involving mass transport.