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| NUMERICAL STUDY OF TWO INTERFACE METHODS FOR COMPRESSIBLE MULTI-FLUID FLOWS | |
| 引用本文： | Ma Dongjun Cai Yong Sun Dejun Yin XieyuanDepartment of Modern Mechanics,University of Science and Technology of China,Hefei 230026,P.R.China. NUMERICAL STUDY OF TWO INTERFACE METHODS FOR COMPRESSIBLE MULTI-FLUID FLOWS[J]. 南京航空航天大学学报(英文版), 2001, 18(Z1) |
| 作者姓名： | Ma Dongjun Cai Yong Sun Dejun Yin XieyuanDepartment of Modern Mechanics University of Science and Technology of China Hefei 230026 P.R.China |
| 作者单位： | Ma Dongjun Cai Yong Sun Dejun Yin XieyuanDepartment of Modern Mechanics，University of Science and Technology of China，Hefei 230026，P.R.China |
| 摘 要： | INTRODUCTIONThe direct numerical simulation of com-pressible multi- fluid flows is an important re-search topic with various key applications.Therelatively dominant difficulty of simulation lies intreatment of the moving material interface. Ingeneral,there are two basic approaches to treatcontact discontinuities.The first,front trackingmethod[1,2 ] ,explicitly characterize the interfacemotion by the motion of individual points on theinterface. The other approach is front capturingmethod[3… |
NUMERICAL STUDY OF TWO INTERFACE METHODS FOR COMPRESSIBLE MULTI-FLUID FLOWS |
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| Ma Dongjun,Cai Yong,SUN Dejun,YIN Xieyuan. NUMERICAL STUDY OF TWO INTERFACE METHODS FOR COMPRESSIBLE MULTI-FLUID FLOWS[J]. Transactions of Nanjing University of Aeronautics & Astronautics, 2001, 18(Z1) | |
| Authors: | Ma Dongjun Cai Yong SUN Dejun YIN Xieyuan |
| Affiliation: | Department of Modern Mechanics, University of Science and Technology of China,Hefei 230026,P. R. China |
| Abstract: | Two interface capturing methods are studied for multi fluid flows, governed by the stiffened gas equation of state. The mixture type interface capturing algorithm uses a simple volume fraction model Euler equations written in a quasi conservative form, which is solved by a standard high resolution piecewise parabolic method (PPM) with multi fluid Riemann solver. The level set interface capturing method uses a narrow band ghost fluid method (GFM) with no numerical smearing. Several examples are presented and compared for one and two dimensions, which show the feasibility of the two methods applied to various multi fluid problems. |
| Keywords: | compressible multi fluids flow interface capturing method ghost fluid method high order Godunov scheme |
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