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A two-equation turbulence model and its application to a buoyant diffusion flame

Yan, Zhenghua LU and Holmstedt, Göran LU (1999) In International Journal of Heat and Mass Transfer 42(7). p.1305-1315
Abstract
A modified k–ε two-equation turbulence model was developed to improve the consideration of the important buoyancy effect on turbulence and turbulent transport, which is a serious deficiency of the standard buoyancy-modified k–ε model. The present model was tested against both plane and axisymmetric thermal plumes and a buoyant diffusion flame. The model was found to be stable, computationally economic, promising and applicable to complex situations. The predicted plume spreading rates and velocity and temperature profiles agreed well with experimental measurements. When compared with the standard buoyancy-modified k–ε turbulence model, this model gives significantly improved numerical results.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Heat and Mass Transfer
volume
42
issue
7
pages
1305 - 1315
publisher
Pergamon
external identifiers
  • scopus:0345189477
ISSN
0017-9310
DOI
10.1016/S0017-9310(98)00206-3
language
English
LU publication?
yes
id
8bd391c0-a9bb-403f-a93a-bbca9b914491 (old id 4497224)
date added to LUP
2014-06-19 12:50:51
date last changed
2017-11-19 03:28:48
@article{8bd391c0-a9bb-403f-a93a-bbca9b914491,
  abstract     = {A modified k–ε two-equation turbulence model was developed to improve the consideration of the important buoyancy effect on turbulence and turbulent transport, which is a serious deficiency of the standard buoyancy-modified k–ε model. The present model was tested against both plane and axisymmetric thermal plumes and a buoyant diffusion flame. The model was found to be stable, computationally economic, promising and applicable to complex situations. The predicted plume spreading rates and velocity and temperature profiles agreed well with experimental measurements. When compared with the standard buoyancy-modified k–ε turbulence model, this model gives significantly improved numerical results.},
  author       = {Yan, Zhenghua and Holmstedt, Göran},
  issn         = {0017-9310},
  language     = {eng},
  number       = {7},
  pages        = {1305--1315},
  publisher    = {Pergamon},
  series       = {International Journal of Heat and Mass Transfer},
  title        = {A two-equation turbulence model and its application to a buoyant diffusion flame},
  url          = {http://dx.doi.org/10.1016/S0017-9310(98)00206-3},
  volume       = {42},
  year         = {1999},
}