›› 2015, Vol. 24 ›› Issue (1): 14703-014703.doi: 10.1088/1674-1056/24/1/014703
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
宋保维, 任峰, 胡海豹, 黄桥高
Song Bao-Wei (宋保维), Ren Feng (任峰), Hu Hai-Bao (胡海豹), Huang Qiao-Gao (黄桥高)
摘要: In this study, we investigate the pseudopotential multiphase model of lattice Boltzmann method (LBM) and incorporate a surface tension term to implement the particle interaction force. By using the Carnahan-Starling (CS) equation of state (EOS) with a proper critical pressure-density ratio, a density ratio over 160000 is obtained with satisfactory numerical stability. The added surface tension term offers a flexible choice to adjust the surface tension strength. Numerical tests of the Laplace rule are conducted, proving that smaller spurious velocity and better numerical stability can be acquired as the surface tension becomes stronger. Moreover, by wall adhesion and heterogeneous cavitation tests, the surface tension term shows its practical application in dealing with problems in which the surface tension plays an important role.
中图分类号: (Multiphase flows)