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

Multi-relaxation-time lattice Boltzmann front tracking method for two-phase flow with surface tension

谢海琼a, 曾忠a b c, 张良奇a, 梁功有a, Hiroshi Mizusekic, Yoshiyuki Kawazoec   

  1. a Department of Engineering Mechanics, Chongqing University, Chongqing 400044, China;
    b State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;
    c Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • 收稿日期:2012-05-11 修回日期:2012-06-05 出版日期:2012-11-01 发布日期:2012-11-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10872222 and 50921063), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110191110037), and the Fundamental Research Funds for the Central Universities, China (Grant Nos. CDJXS11240011 and CDJXS10241103).

Multi-relaxation-time lattice Boltzmann front tracking method for two-phase flow with surface tension

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   

  1. a Department of Engineering Mechanics, Chongqing University, Chongqing 400044, China;
    b State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;
    c Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
  • Received:2012-05-11 Revised:2012-06-05 Online:2012-11-01 Published:2012-11-01
  • Contact: Zeng Zhong E-mail:zzeng@cqu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 10872222 and 50921063), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110191110037), and the Fundamental Research Funds for the Central Universities, China (Grant Nos. CDJXS11240011 and CDJXS10241103).

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.

关键词: lattice Boltzmann method, multi-relaxation-time, front tracking method, surface tension, two-phase flow

Abstract: 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.

Key words: lattice Boltzmann method, multi-relaxation-time, front tracking method, surface tension, two-phase flow

中图分类号:  (Multiphase flows)

  • 47.61.Jd
47.11.-j (Computational methods in fluid dynamics) 47.45.Ab (Kinetic theory of gases)