Simulation of gas-particle channel flows using a two-fluid particle-wall collision model accounting for wall roughness

X. Zhang*, L. X. Zhou

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Citations (Scopus)

Abstract

A two-fluid particle-wall collision model accounting for wall roughness is proposed. It accounts for the effects of wall friction, restitution, in particular the wall roughness, and hence the redistribution of particle Reynolds stresses in different directions at the wall, the absorption of turbulent kinetic energy from the kinetic energy of mean motion at the wall and the attenuation of particle motion by the wall. It gives the effect of wall roughness on the particle turbulence. The proposed model is applied to simulate gas-particle horizontal channel flows and is validated using PDPA measurement results. It is shown that presently used zero-gradient boundary conditions and other collision models of particle phase might give false results.

Original languageEnglish
Title of host publicationProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
Subtitle of host publicationVolume 2, Part A, Symposia
EditorsA. Ogut, Y. Tsuji, M. Kawahashi
PublisherAmerican Society of Mechanical Engineers
Pages589-594
Number of pages6
ISBN (Print)0791836967, 9780791836965
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
Duration: 6 Jul 200310 Jul 2003

Publication series

NameProceedings of the ASME/JSME Joint Fluids Engineering Conference
Volume2 A

Conference

Conference4th ASME/JSME Joint Fluids Engineering Conference
Country/TerritoryUnited States
CityHonolulu, HI
Period6/07/0310/07/03

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