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고성호(S. H. Ko),곽영균(Y. K. Kwack),오종윤(J. Y. Oh),김윤곤(Y. K. Kim) 한국전산유체공학회 2010 한국전산유체공학회 학술대회논문집 Vol.2010 No.11
Numerical simulation of compresible multi-phase flow involves many difficulties related to interfaces of shock, expansion waves and evaporation. It is difficult to model and compute correctly jump conditions across the interfaces. In this paper, mumerical analysis of multi-phase flows are performed using diffuse interface model for modelling liquid-gas interfaces. The reduced five equation model based on the mixture velocity and mixture pressure is used. These diffuse interfaces relaxation effects are solved in order to match the jump conditions of equal pressure and equal normal velocities. The mumerical evalustion of Riemann solver has been conducted for the classical one-dimensional shock tube and compared with exact solution for error analysis.