Published Papers
     Search Papers (Springer,
   After 2008)
     Search Papers (Dbpia,
   Until 2007)
     Search Papers (JMST
   own data base)
       - Classification By Year   
       - Classification By Topic
     Special Issues
   
           
   
 
 
Subject Keyword Abstract Author
 
 
A high resolution numerical scheme for a high speed gas-liquid two-phase flow

Byeong Rog Shin*
The Journal of Mechanical Science and Technology, vol. 25, no. 5, pp.1373-1379, 2011

Abstract : A high resolution numerical method for solving high speed gas-liquid two-phase flow is proposed and applied to the two-phase shock tube problem. The present method employs a finite-difference 4th-order Runge-Kutta method and Roe's flux difference splitting approximation with the MUSCL TVD scheme. A homogeneous equilibrium gas-liquid two-phase model that takes account of the compressibility of mixed media is used. Therefore, the present density-based numerical method permits simple treatment of the whole gasliquid two-phase flow field, including wave propagation, large density changes and incompressible flow characteristics at the low Mach number. The speed of sound of above two-phase media has been derived on the basis of thermodynamic relations. By this method, a Riemann problem for the Euler equations of a one-dimensional shock tube was computed. Numerical results such as detailed observations of shock and expansion wave propagations through the gas-liquid two-phase media at thermal and isothermal conditions, and some features related to computational efficiency are made. Comparisons of predicted results with exact solutions are provided and discussed.

Keyword : Gas-liquid two-phase flow; Homogeneous model; MUSCL TVD scheme; Density based method; Equation of state; Riemann problem; Void fraction

 
 
 
JMST Editorial Office: #702 KSTC New Bldg, 22 7-gil, Teheran-ro, Gangnam-gu, Seoul 06130, Korea
TEL: +82-2-501-3605, E-mail: editorial@j-mst.org
JMST Production Office: #702 KSTC New Bldg, 22 7-gil, Teheran-ro, Gangnam-gu, Seoul 06130, Korea
TEL: +82-2-501-6056, FAX: +82-2-501-3649, E-mail: editorial@j-mst.org