Direct numerical simulation of the influence of Stokes number on velocity and particle concentration distributions in particle-laden round jets

被引：0

作者：

Qazi, N. A. ^{[1
]}

Wang, H. ^{[1
]}

Tang, J. C. K. ^{[1
]}

Bolla, M. ^{[1
]}

Hawkes, E. R. ^{[1
,2
]}

Yeoh, G. ^{[1
]}

Grout, R. W. ^{[3
]}

机构：

[1] Univ New South Wales, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia

[2] Univ New South Wales, Sch Photovolta & Renewable Energy Engn, Sydney, NSW 2052, Australia

[3] Natl Renewable Energy Labs, Computat Sci Ctr, Golden, CO USA

来源：

PROCEEDINGS OF THE EIGHTH INTERNATIONAL SYMPOSIUM ON TURBULENCE HEAT AND MASS TRANSFER (THMT-15) | 2015年

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1615/ICHMT.2015.THMT-15.1140

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Direct numerical simulations of a particle-laden turbulent round jet have been carried out for three different Stokes number (St = 0.3, 1.4, 11.2) in the two-way coupling regime. Efforts have been made to ensure that the initial conditions match well with recent experiments. The influence of stokes number on velocity and concentration distributions has been investigated. Comparison of results between the simulation and experimental data set indicates good general agreement. It is found that lighter particles exhibit small scale clustering already a few diameters downstream the jet orifice, whereas heavier particles do not get affected by the large scale ribs vortical structure of the jet and continue along their path as supplied by the injection velocity.

引用

页码：535 / 538

页数：4