中国物理B ›› 2025, Vol. 34 ›› Issue (3): 34701-034701.doi: 10.1088/1674-1056/ada438

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Motion of a rigid particle in the lid-driven cavity flow

Fan Yang(杨帆)1,2,†, Zhe Yan(闫喆)1, Wencan Wang(汪文灿)1, and Ren Shi(施任)1   

  1. 1 School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    2 Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 200093, China
  • 收稿日期:2024-11-01 修回日期:2024-12-07 接受日期:2024-12-31 发布日期:2025-03-15
  • 通讯作者: Fan Yang E-mail:usstyf@126.com

Motion of a rigid particle in the lid-driven cavity flow

Fan Yang(杨帆)1,2,†, Zhe Yan(闫喆)1, Wencan Wang(汪文灿)1, and Ren Shi(施任)1   

  1. 1 School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    2 Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 200093, China
  • Received:2024-11-01 Revised:2024-12-07 Accepted:2024-12-31 Published:2025-03-15
  • Contact: Fan Yang E-mail:usstyf@126.com

摘要: The motion of an elliptical rigid particle in a lid-driven cavity flow was numerically simulated using the immersed boundary lattice Boltzmann method (IB-LBM). The effects of the particle's initial orientation angle, initial position, aspect ratio, and size on the motion characteristics were investigated. The computational results indicate that the particle's motion undergoes two distinct stages: a starting stage that involves moving from the release position to a limit cycle, and a periodic stage that involves moving on the limit cycle. The initial orientation of the particle has a minimal impact on both stages of motion. In contrast, the time it takes for the particle to reach the limit cycle may vary depending on the release position. Furthermore, particles with a larger aspect ratio exhibit a greater maximum velocity magnitude; an increase in particle size causes the particle trajectory to contract more toward the center of the cavity, decreasing the centrifugal force experienced by the particle.

关键词: lattice Boltzmann methods, immersed boundary method, elliptical rigid particle, lid-driven cavity flow

Abstract: The motion of an elliptical rigid particle in a lid-driven cavity flow was numerically simulated using the immersed boundary lattice Boltzmann method (IB-LBM). The effects of the particle's initial orientation angle, initial position, aspect ratio, and size on the motion characteristics were investigated. The computational results indicate that the particle's motion undergoes two distinct stages: a starting stage that involves moving from the release position to a limit cycle, and a periodic stage that involves moving on the limit cycle. The initial orientation of the particle has a minimal impact on both stages of motion. In contrast, the time it takes for the particle to reach the limit cycle may vary depending on the release position. Furthermore, particles with a larger aspect ratio exhibit a greater maximum velocity magnitude; an increase in particle size causes the particle trajectory to contract more toward the center of the cavity, decreasing the centrifugal force experienced by the particle.

Key words: lattice Boltzmann methods, immersed boundary method, elliptical rigid particle, lid-driven cavity flow

中图分类号:  (Lattice gas)

  • 47.11.Qr
47.61.Jd (Multiphase flows) 47.55.Kf (Particle-laden flows)