A two-fluid model of turbulent two-phase flow for simulating turbulent stratified flows |
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| Authors: | Y M Shen C -O Ng A T Chwang |
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| Institution: | a State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, People's Republic of China;b Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of China |
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| Abstract: | In this paper, a two-fluid model of turbulent two-phase flow is used to simulate turbulent stratified flows. This is a unified multi-fluid model for the motion of each phase in the flow, whose turbulent transport is closed by a two-phase k– model. The exchanges of mass, momentum and energy between the two phases are fully accounted for in the simulation. For illustration, a case of turbulent stratified flow with strong buoyancy effects, for which extensive experimental data are available, is selected for examination. It is shown that the numerical results agree well with the experimental data. |
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| Keywords: | Buoyancy effects Stratified flow Two-phase turbulence Two-fluid model |
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