Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Turbulent flow and heat transfer in a square-sectioned U-bend

Etemad, Sassan LU ; Sundén, Bengt LU and Daunius, O (2006) In Progress in Computational Fluid Dynamics, An International Journal 6(1-3). p.89-100
Abstract
Turbulent flow and heat transfer in a square-sectioned U-bend are investigated. Turbulence models with linear and non-linear expressions for the Reynolds stresses are used. The near wall turbulence is treated by the damping functions approach and a two-layer model with Wolfshtein's sub-layer treatment. The inlet conditions have a significant effect on the predictions. The results from the non-linear low-Reynolds number k-epsilon models including Suga's cubic low-Re model were closest to experimental data. These models predicted the stress-induced secondary motion in the straight inlet duct well. This secondary motion had a small impact on the flow in the bend.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
secondary, flow, turbulence models, computation, curved duct, heat transfer
in
Progress in Computational Fluid Dynamics, An International Journal
volume
6
issue
1-3
pages
89 - 100
publisher
Inderscience Publishers
external identifiers
  • wos:000237201800009
  • scopus:33744483147
ISSN
1741-5233
DOI
10.1504/PCFD.2006.009486
language
English
LU publication?
yes
id
b502ee43-5ce9-48c0-8233-0ec3caefb36c (old id 410667)
date added to LUP
2016-04-01 11:45:37
date last changed
2022-01-26 17:51:06
@article{b502ee43-5ce9-48c0-8233-0ec3caefb36c,
  abstract     = {{Turbulent flow and heat transfer in a square-sectioned U-bend are investigated. Turbulence models with linear and non-linear expressions for the Reynolds stresses are used. The near wall turbulence is treated by the damping functions approach and a two-layer model with Wolfshtein's sub-layer treatment. The inlet conditions have a significant effect on the predictions. The results from the non-linear low-Reynolds number k-epsilon models including Suga's cubic low-Re model were closest to experimental data. These models predicted the stress-induced secondary motion in the straight inlet duct well. This secondary motion had a small impact on the flow in the bend.}},
  author       = {{Etemad, Sassan and Sundén, Bengt and Daunius, O}},
  issn         = {{1741-5233}},
  keywords     = {{secondary; flow; turbulence models; computation; curved duct; heat transfer}},
  language     = {{eng}},
  number       = {{1-3}},
  pages        = {{89--100}},
  publisher    = {{Inderscience Publishers}},
  series       = {{Progress in Computational Fluid Dynamics, An International Journal}},
  title        = {{Turbulent flow and heat transfer in a square-sectioned U-bend}},
  url          = {{http://dx.doi.org/10.1504/PCFD.2006.009486}},
  doi          = {{10.1504/PCFD.2006.009486}},
  volume       = {{6}},
  year         = {{2006}},
}