中国物理B ›› 2016, Vol. 25 ›› Issue (1): 14702-014702.doi: 10.1088/1674-1056/25/1/014702

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Three-dimensional multi-relaxation-time lattice Boltzmann front-tracking method for two-phase flow

Hai-Qiong Xie(谢海琼), Zhong Zeng(曾忠), Liang-Qi Zhang(张良奇)   

  1. 1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;
    2. Department of Engineering Mechanics, Chongqing University, Chongqing 400044, China;
    3. Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China
  • 收稿日期:2015-07-13 修回日期:2015-09-10 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Zhong Zeng E-mail:zzeng@cqu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11572062), the Fundamental Research Funds for the Central Universities, China (Grant No. CDJZR13248801), the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT13043), and Key Laboratory of Functional Crystals and Laser Technology, TIPC, Chinese Academy of Sciences.

Three-dimensional multi-relaxation-time lattice Boltzmann front-tracking method for two-phase flow

Hai-Qiong Xie(谢海琼)1,2, Zhong Zeng(曾忠)1,2,3, Liang-Qi Zhang(张良奇)1,2   

  1. 1. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China;
    2. Department of Engineering Mechanics, Chongqing University, Chongqing 400044, China;
    3. Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China
  • Received:2015-07-13 Revised:2015-09-10 Online:2016-01-05 Published:2016-01-05
  • Contact: Zhong Zeng E-mail:zzeng@cqu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11572062), the Fundamental Research Funds for the Central Universities, China (Grant No. CDJZR13248801), the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT13043), and Key Laboratory of Functional Crystals and Laser Technology, TIPC, Chinese Academy of Sciences.

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摘要： We developed a three-dimensional multi-relaxation-time lattice Boltzmann method for incompressible and immiscible two-phase flow by coupling with a front-tracking technique. The flow field was simulated by using an Eulerian grid, an adaptive unstructured triangular Lagrangian grid was applied to track explicitly the motion of the two-fluid interface, and an indicator function was introduced to update accurately the fluid properties. The surface tension was computed directly on a triangular Lagrangian grid, and then the surface tension was distributed to the background Eulerian grid. Three benchmarks of two-phase flow, including the Laplace law for a stationary drop, the oscillation of a three-dimensional ellipsoidal drop, and the drop deformation in a shear flow, were simulated to validate the present model.

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

Abstract: We developed a three-dimensional multi-relaxation-time lattice Boltzmann method for incompressible and immiscible two-phase flow by coupling with a front-tracking technique. The flow field was simulated by using an Eulerian grid, an adaptive unstructured triangular Lagrangian grid was applied to track explicitly the motion of the two-fluid interface, and an indicator function was introduced to update accurately the fluid properties. The surface tension was computed directly on a triangular Lagrangian grid, and then the surface tension was distributed to the background Eulerian grid. Three benchmarks of two-phase flow, including the Laplace law for a stationary drop, the oscillation of a three-dimensional ellipsoidal drop, and the drop deformation in a shear flow, were simulated to validate the present model.

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

中图分类号:  (Multiphase flows)

  • 47.61.Jd
05.20.Dd (Kinetic theory)