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Direct Numerical Simulation of Two-Fluid System and Its Application to Air-Water Turbulent Flows with Deformed Interfaces

Author(s): Keisuke Yoshida; Satoru Ushijima; Iehisa Nezu

Linked Author(s): Keisuke Yoshida

Keywords: Ir-water co-current flows; Numerical prediction; DNS; MARS

Abstract: In this study, a direct numerical simulation for analyzing the immiscible incompressible two-fluid flows was carried out with the 3-dimensional MARS method, and the applicability of this scheme was verified in the water column collapse phenomenon, 2-dimesional channel flows between two walls and 3-dimensional air-water co-current flows between a non-slip wall and a free-slip wall. It was shown that the present numerical simulation was in good agreement with previous experimental and numerical results, and that the volume of fluid in flows was sufficiently conserved for long simulation time steps.


Year: 2005

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