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On numerical simulations of flow and heat transfer of the bend part of a U-duct

Salameh, Tareq LU and Sundén, Bengt LU (2010) 11th International Conference on Advanced Computational Methods & Experimental Measurements in Heat Transfer & Mass Transfer In Advanced Computational Methods and Experiments in Heat Transfer XI 68. p.167-175
Abstract
Two-dimensional numerical simulations of the flow and temperature fields inside the bend (turn) part of a U duct have been performed. Both the standard and low Reynolds number k-epsilon models were used to solve the smooth bend (turn) part and ribbed bend (turn) part, respectively. For the standard k-epsilon model, the wall function approach was used at the near wall region where the log-law was assumed to be valid, whereas the modelling damping functions were used in the low Reynolds number model. In the case of the ribbed bend (turn) part, two approaches were used, the total approach and an approach based on periodic flow condition. The details of the duct geometry were as follows: the cross section area of the straight part is 50x50... (More)
Two-dimensional numerical simulations of the flow and temperature fields inside the bend (turn) part of a U duct have been performed. Both the standard and low Reynolds number k-epsilon models were used to solve the smooth bend (turn) part and ribbed bend (turn) part, respectively. For the standard k-epsilon model, the wall function approach was used at the near wall region where the log-law was assumed to be valid, whereas the modelling damping functions were used in the low Reynolds number model. In the case of the ribbed bend (turn) part, two approaches were used, the total approach and an approach based on periodic flow condition. The details of the duct geometry were as follows: the cross section area of the straight part is 50x50 mm(2), the inside length of the bend part 240 mm, the cross section area of the rib is 5x5 mm(2) and the rib height-to-hydraulic diameter ratio, e/Dh, is 0.1. The results are compared with experimental data obtained for the same conditions. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
k-epsilon, low Reynold number, smooth and ribbed bend part, standard k-epsilon, periodic flow condition
in
Advanced Computational Methods and Experiments in Heat Transfer XI
volume
68
pages
167 - 175
publisher
WIT Press
conference name
11th International Conference on Advanced Computational Methods & Experimental Measurements in Heat Transfer & Mass Transfer
external identifiers
  • wos:000282061900015
  • scopus:78449242158
ISSN
1743-3533
DOI
10.2495/HT100151
language
English
LU publication?
yes
id
582e2f62-51b4-4793-8ee8-f71eef2514f9 (old id 1696167)
date added to LUP
2010-10-25 12:09:23
date last changed
2018-05-29 12:11:10
@inproceedings{582e2f62-51b4-4793-8ee8-f71eef2514f9,
  abstract     = {Two-dimensional numerical simulations of the flow and temperature fields inside the bend (turn) part of a U duct have been performed. Both the standard and low Reynolds number k-epsilon models were used to solve the smooth bend (turn) part and ribbed bend (turn) part, respectively. For the standard k-epsilon model, the wall function approach was used at the near wall region where the log-law was assumed to be valid, whereas the modelling damping functions were used in the low Reynolds number model. In the case of the ribbed bend (turn) part, two approaches were used, the total approach and an approach based on periodic flow condition. The details of the duct geometry were as follows: the cross section area of the straight part is 50x50 mm(2), the inside length of the bend part 240 mm, the cross section area of the rib is 5x5 mm(2) and the rib height-to-hydraulic diameter ratio, e/Dh, is 0.1. The results are compared with experimental data obtained for the same conditions.},
  author       = {Salameh, Tareq and Sundén, Bengt},
  booktitle    = {Advanced Computational Methods and Experiments in Heat Transfer XI},
  issn         = {1743-3533},
  keyword      = {k-epsilon,low Reynold number,smooth and ribbed bend part,standard k-epsilon,periodic flow condition},
  language     = {eng},
  pages        = {167--175},
  publisher    = {WIT Press},
  title        = {On numerical simulations of flow and heat transfer of the bend part of a U-duct},
  url          = {http://dx.doi.org/10.2495/HT100151},
  volume       = {68},
  year         = {2010},
}