Inter-particle collision in particle-laden isotropic turbulence

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Direct numerical simulations of heavy particles in isotropic homogeneous turbulence are performed to study inter-particle collisions in a wide range of Stokes numbers. Dynamics of the particles are described by Stokes drag including particle-particle interactions via hard-sphere collisions while fluid turbulence is solved using a pseudo-spectral method. The statistics related to rotation and dissipation rates as well as collision frequency are investigated. A particular emphasis is placed on the statistics of the fluid experienced by heavy particles, which provide essential information on the collision process. A plausible explanation of the collision mechanism for various Stokes numbers is provided.

Original languageEnglish
Article number052012
JournalJournal of Physics: Conference Series
Volume318
Issue numberSECTION 5
DOIs
Publication statusPublished - 2011 Jan 1
Event13th European Turbulence Conference, ETC13 - Warsaw, Poland
Duration: 2011 Sep 122011 Sep 15

Fingerprint

particle collisions
isotropic turbulence
collisions
statistics
homogeneous turbulence
fluids
spectral methods
particle interactions
direct numerical simulation
drag
dissipation
turbulence

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{cccafcb4c6f148648432c8e9f9f586c7,
title = "Inter-particle collision in particle-laden isotropic turbulence",
abstract = "Direct numerical simulations of heavy particles in isotropic homogeneous turbulence are performed to study inter-particle collisions in a wide range of Stokes numbers. Dynamics of the particles are described by Stokes drag including particle-particle interactions via hard-sphere collisions while fluid turbulence is solved using a pseudo-spectral method. The statistics related to rotation and dissipation rates as well as collision frequency are investigated. A particular emphasis is placed on the statistics of the fluid experienced by heavy particles, which provide essential information on the collision process. A plausible explanation of the collision mechanism for various Stokes numbers is provided.",
author = "Choi, {Jung Il} and Ohjoon Kwon and Changhoon Lee",
year = "2011",
month = "1",
day = "1",
doi = "10.1088/1742-6596/318/5/052012",
language = "English",
volume = "318",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "SECTION 5",

}

Inter-particle collision in particle-laden isotropic turbulence. / Choi, Jung Il; Kwon, Ohjoon; Lee, Changhoon.

In: Journal of Physics: Conference Series, Vol. 318, No. SECTION 5, 052012, 01.01.2011.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Inter-particle collision in particle-laden isotropic turbulence

AU - Choi, Jung Il

AU - Kwon, Ohjoon

AU - Lee, Changhoon

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Direct numerical simulations of heavy particles in isotropic homogeneous turbulence are performed to study inter-particle collisions in a wide range of Stokes numbers. Dynamics of the particles are described by Stokes drag including particle-particle interactions via hard-sphere collisions while fluid turbulence is solved using a pseudo-spectral method. The statistics related to rotation and dissipation rates as well as collision frequency are investigated. A particular emphasis is placed on the statistics of the fluid experienced by heavy particles, which provide essential information on the collision process. A plausible explanation of the collision mechanism for various Stokes numbers is provided.

AB - Direct numerical simulations of heavy particles in isotropic homogeneous turbulence are performed to study inter-particle collisions in a wide range of Stokes numbers. Dynamics of the particles are described by Stokes drag including particle-particle interactions via hard-sphere collisions while fluid turbulence is solved using a pseudo-spectral method. The statistics related to rotation and dissipation rates as well as collision frequency are investigated. A particular emphasis is placed on the statistics of the fluid experienced by heavy particles, which provide essential information on the collision process. A plausible explanation of the collision mechanism for various Stokes numbers is provided.

UR - http://www.scopus.com/inward/record.url?scp=84863054648&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863054648&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/318/5/052012

DO - 10.1088/1742-6596/318/5/052012

M3 - Conference article

AN - SCOPUS:84863054648

VL - 318

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - SECTION 5

M1 - 052012

ER -