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Modified surface tension model for free surface flow with single-phase lattice Boltzmann method |
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| Authors: | YAN Yong-hua YANG Fan QIAN Zhong-dong QIAN Yue-hong |
| Institution: | 1. Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,P.R.China;Department of Mathematics,University of Texas at Arlington,Arlington 76019,Texas,USA 2. School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,P.R.China 3. State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,P.R.China 4. Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University,Shanghai 200072,P.R.China |
| Abstract: | A single-phase lattice Boltzmann model with modified surface tension is developed in this paper to solve the problem of high-density-ratio free surface flow.The computational efficiency and accuracy are both enhanced.The restriction to the relaxation factor (which needs to be smaller than 1) is circumvented by the new surface tension algebra,due to its rational physical nature compared with the treatment of Xing,Buther and Yang in their paper (Comp.Mater.Sci.,2007,39(2):282-290).The proposed stable surface ... |
| Keywords: | surface tension lattice Boltzmann model(LBM) single-phase model high density ratio free surface droplet |
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