中国物理B ›› 2017, Vol. 26 ›› Issue (1): 14701-014701.doi: 10.1088/1674-1056/26/1/014701

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

Dynamics of a self-propelled particle under different driving modes in a channel flow

Zhenyu Ouyang(欧阳振宇), Jianzhong Lin(林建忠), Xiaoke Ku(库晓珂)   

  1. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
  • 收稿日期:2016-05-06 修回日期:2016-08-28 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Jianzhong Lin E-mail:mecjzlin@public.zju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11632016).

Dynamics of a self-propelled particle under different driving modes in a channel flow

Zhenyu Ouyang(欧阳振宇), Jianzhong Lin(林建忠), Xiaoke Ku(库晓珂)   

  1. State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
  • Received:2016-05-06 Revised:2016-08-28 Online:2017-01-05 Published:2017-01-05
  • Contact: Jianzhong Lin E-mail:mecjzlin@public.zju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11632016).

摘要: In this paper, a model that combines the lattice Boltzmann method with the singularity distribution method is proposed to simulate a self-propelled particle swimming (exhibiting translation and rotation) in a channel flow. The results show that the velocity distribution for a self-propelled particle swimming deviates from a Maxwellian distribution and exhibits high-velocity tails. The influence of an eccentric potential doublet on the translation velocity of the particle is significant. The velocity decay process can be described using a double exponential model form. No large differences in the velocity distribution were observed for different translation Reynolds numbers, rotation Reynolds numbers, or regular intervals.

关键词: lattice Boltzmann method, singularity distribution method, self-propelled particle, driving modes

Abstract: In this paper, a model that combines the lattice Boltzmann method with the singularity distribution method is proposed to simulate a self-propelled particle swimming (exhibiting translation and rotation) in a channel flow. The results show that the velocity distribution for a self-propelled particle swimming deviates from a Maxwellian distribution and exhibits high-velocity tails. The influence of an eccentric potential doublet on the translation velocity of the particle is significant. The velocity decay process can be described using a double exponential model form. No large differences in the velocity distribution were observed for different translation Reynolds numbers, rotation Reynolds numbers, or regular intervals.

Key words: lattice Boltzmann method, singularity distribution method, self-propelled particle, driving modes

中图分类号:  (Kinetic theory)

  • 05.20.Dd
47.11.Qr (Lattice gas) 47.57.E- (Suspensions)