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Heat Transfer Control Around an Obstacle by Using Ribs in the Downstream Region

Ghorbani-Tari, Zahra LU ; Wang, Lei LU and Sundén, Bengt LU (2014) In Journal of Thermal Science and Engineering Apllications 6(4).
Abstract
This paper investigates the effect of the presence of a rib on the local heat transfer around an obstacle using liquid crystal technique. An obstacle with a rectangular cross section is placed in a channel and attached to the end-wall. A rib is positioned in the downstream region of the obstacle. The spacing S between the rib and the obstacle is normalized by the spanwise width of the obstacle and the value is 1.25d. The effects of the rib height e/D-h and Reynolds number are investigated. The e/D-h has the values 0.039 and 0.078. The Reynolds number varies between 35,600 and 55,600. It is shown that the local heat transfer in the upstream region of the obstacle remained unaffected by the presence of the rib. The feature of local heat... (More)
This paper investigates the effect of the presence of a rib on the local heat transfer around an obstacle using liquid crystal technique. An obstacle with a rectangular cross section is placed in a channel and attached to the end-wall. A rib is positioned in the downstream region of the obstacle. The spacing S between the rib and the obstacle is normalized by the spanwise width of the obstacle and the value is 1.25d. The effects of the rib height e/D-h and Reynolds number are investigated. The e/D-h has the values 0.039 and 0.078. The Reynolds number varies between 35,600 and 55,600. It is shown that the local heat transfer in the upstream region of the obstacle remained unaffected by the presence of the rib. The feature of local heat transfer in the downstream area of the obstacle was substantially modified by the presence of the rib. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Thermal Science and Engineering Apllications
volume
6
issue
4
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • wos:000363381700010
  • scopus:84940912677
ISSN
1948-5093
DOI
10.1115/1.4027721
language
English
LU publication?
yes
id
c6ed3102-dd9c-4ca9-abac-758f1d50f38e (old id 8201749)
date added to LUP
2015-11-26 13:25:13
date last changed
2017-01-01 03:37:24
@article{c6ed3102-dd9c-4ca9-abac-758f1d50f38e,
  abstract     = {This paper investigates the effect of the presence of a rib on the local heat transfer around an obstacle using liquid crystal technique. An obstacle with a rectangular cross section is placed in a channel and attached to the end-wall. A rib is positioned in the downstream region of the obstacle. The spacing S between the rib and the obstacle is normalized by the spanwise width of the obstacle and the value is 1.25d. The effects of the rib height e/D-h and Reynolds number are investigated. The e/D-h has the values 0.039 and 0.078. The Reynolds number varies between 35,600 and 55,600. It is shown that the local heat transfer in the upstream region of the obstacle remained unaffected by the presence of the rib. The feature of local heat transfer in the downstream area of the obstacle was substantially modified by the presence of the rib.},
  articleno    = {041010},
  author       = {Ghorbani-Tari, Zahra and Wang, Lei and Sundén, Bengt},
  issn         = {1948-5093},
  language     = {eng},
  number       = {4},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Thermal Science and Engineering Apllications},
  title        = {Heat Transfer Control Around an Obstacle by Using Ribs in the Downstream Region},
  url          = {http://dx.doi.org/10.1115/1.4027721},
  volume       = {6},
  year         = {2014},
}