中国物理B ›› 2012, Vol. 21 ›› Issue (12): 124703-124703.doi: 10.1088/1674-1056/21/12/124703
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
谢海琼a, 曾忠a b c, 张良奇a, 梁功有a, Hiroshi Mizusekic, Yoshiyuki Kawazoec
Xie Hai-Qiong (谢海琼)a, Zeng Zhong (曾忠)a b c, Zhang Liang-Qi (张良奇)a, Liang Gong-You (梁功有)a, Hiroshi Mizusekic, Yoshiyuki Kawazoec
摘要: In this paper, an improved incompressible multi-relaxation-time lattice Boltzmann-front tracking approach is proposed to simulate two-phase flow with sharp interface, where the surface tension is implemented. The lattice Boltzmann method is used to simulate the incompressible flow with a stationary Eulerian grid, an additional moving Lagrangian grid is adopted to track explicitly the motion of the interface, and an indicator function is introduced to update accurately the fluid properties. The interface is represented by using a four-order Lagrange polynomial through fitting a set of discrete marker points, and then the surface tension is directly computed by using the normal vector and curvature of the interface. Two benchmark problems, including the Laplace's law for a stationary bubble and the dispersion relation of the capillary wave between two fluids are conducted for validation. Excellent agreement is obtained between the numerical simulations and the theoretical results in the two cases.
中图分类号: (Multiphase flows)