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Heat Transfer Characteristics of an Impinging Jet in Crossflow

Wang, Lei LU ; Sundén, Bengt LU ; Borg, Andreas and Abrahamsson, Hans (2011) In Journal of Heat Transfer 133(12).
Abstract
The heat transfer characteristics of an impinging jet into a crossflow have been investigated by the liquid crystal thermography technique. The jet nozzle is circular and is inclined at 10 deg with respect to the target wall. In a turbulent flow regime, the effects of the jet Reynolds number, the velocity ratio, and the crossflow Reynolds number on the heat transfer are examined. The results show that the heat transfer patterns are strongly affected by the jet Reynolds number and the velocity ratio. For a given jet Reynolds number, it is found that the crossflow diminishes the peak Nusselt number in the jet impingement region. However, in the wall jet region, the results suggest that the local heat transfer is nearly independent of the... (More)
The heat transfer characteristics of an impinging jet into a crossflow have been investigated by the liquid crystal thermography technique. The jet nozzle is circular and is inclined at 10 deg with respect to the target wall. In a turbulent flow regime, the effects of the jet Reynolds number, the velocity ratio, and the crossflow Reynolds number on the heat transfer are examined. The results show that the heat transfer patterns are strongly affected by the jet Reynolds number and the velocity ratio. For a given jet Reynolds number, it is found that the crossflow diminishes the peak Nusselt number in the jet impingement region. However, in the wall jet region, the results suggest that the local heat transfer is nearly independent of the crossflow Reynolds number. [DOI: 10.1115/1.4004527] (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
jet impingement, crossflow, heat transfer, liquid crystal thermography
in
Journal of Heat Transfer
volume
133
issue
12
publisher
American Society Of Mechanical Engineers (ASME)
external identifiers
  • wos:000295881500008
  • scopus:80054045218
ISSN
0022-1481
DOI
10.1115/1.4004527
language
English
LU publication?
yes
id
7d7b2358-2dfc-4fdc-abff-03f7573b0e0d (old id 2211814)
date added to LUP
2011-11-24 15:04:34
date last changed
2017-04-23 03:59:01
@article{7d7b2358-2dfc-4fdc-abff-03f7573b0e0d,
  abstract     = {The heat transfer characteristics of an impinging jet into a crossflow have been investigated by the liquid crystal thermography technique. The jet nozzle is circular and is inclined at 10 deg with respect to the target wall. In a turbulent flow regime, the effects of the jet Reynolds number, the velocity ratio, and the crossflow Reynolds number on the heat transfer are examined. The results show that the heat transfer patterns are strongly affected by the jet Reynolds number and the velocity ratio. For a given jet Reynolds number, it is found that the crossflow diminishes the peak Nusselt number in the jet impingement region. However, in the wall jet region, the results suggest that the local heat transfer is nearly independent of the crossflow Reynolds number. [DOI: 10.1115/1.4004527]},
  author       = {Wang, Lei and Sundén, Bengt and Borg, Andreas and Abrahamsson, Hans},
  issn         = {0022-1481},
  keyword      = {jet impingement,crossflow,heat transfer,liquid crystal thermography},
  language     = {eng},
  number       = {12},
  publisher    = {American Society Of Mechanical Engineers (ASME)},
  series       = {Journal of Heat Transfer},
  title        = {Heat Transfer Characteristics of an Impinging Jet in Crossflow},
  url          = {http://dx.doi.org/10.1115/1.4004527},
  volume       = {133},
  year         = {2011},
}