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Gravity-driven clustering of inertial particles in turbulence

Yongnam Park and Changhoon Lee
Phys. Rev. E 89, 061004(R) – Published 26 June 2014
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Abstract

We report a different kind of particle clustering caused purely by gravity, discovered in our simulation of particle-laden turbulence. Clustering in a vertical strip pattern forms when strong gravity acts on heavy particles. This phenomenon is explained by the skewness of the flow velocity gradient in the gravitational direction experienced by particles, which causes horizontal convergence of particles.

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  • Received 19 January 2014

DOI:https://doi.org/10.1103/PhysRevE.89.061004

©2014 American Physical Society

Authors & Affiliations

Yongnam Park1 and Changhoon Lee2,*

  • 1Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, Korea
  • 2Department of Computational Science and Engineering and Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodamun-gu, Seoul, Korea

  • *clee@yonsei.ac.kr

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Vol. 89, Iss. 6 — June 2014

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