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Spiral Coil Inserts for Heat Transfer Enhancement in a Parallel-plate Channel

Leng, Xue-Li; Zhang, Guan-Min; Tang, Yu-Feng; Luo, Lin-Cong; Wu, Zan LU ; Ma, Lian-Xiang and Li, Wei (2014) In Numerical Heat Transfer Part A: Applications 66(7). p.756-772
Abstract
The flow fields and heat transfer characteristics in a parallel-plate channel with a transversely placed spiral coil insert were investigated by three-dimensional numerical simulation. The structure of multi-longitudinal-vortices (MLVs) induced by the spiral coil and the effects of MLVs on velocity and temperature fields were studied. The three-dimensional spiral coil induces a series of longitudinal vortices in the channel including leading longitudinal vortex, mainstream longitudinal vortices, near-wall longitudinal vortices, and rear central longitudinal vortex. Transport by the longitudinal vortices can increase the mass exchange between the boundary layer and the mainstream, which speeds up the heat migration from the channel walls... (More)
The flow fields and heat transfer characteristics in a parallel-plate channel with a transversely placed spiral coil insert were investigated by three-dimensional numerical simulation. The structure of multi-longitudinal-vortices (MLVs) induced by the spiral coil and the effects of MLVs on velocity and temperature fields were studied. The three-dimensional spiral coil induces a series of longitudinal vortices in the channel including leading longitudinal vortex, mainstream longitudinal vortices, near-wall longitudinal vortices, and rear central longitudinal vortex. Transport by the longitudinal vortices can increase the mass exchange between the boundary layer and the mainstream, which speeds up the heat migration from the channel walls and enhances the heat diffusion in the mainstream. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Numerical Heat Transfer Part A: Applications
volume
66
issue
7
pages
756 - 772
publisher
Taylor & Francis
external identifiers
  • wos:000338106600002
  • scopus:84903316886
ISSN
1040-7782
DOI
10.1080/10407782.2014.892355
language
English
LU publication?
yes
id
0e66633a-5c34-4243-bf97-734a4c93e53a (old id 4609269)
date added to LUP
2014-08-26 11:40:05
date last changed
2017-01-01 06:28:43
@article{0e66633a-5c34-4243-bf97-734a4c93e53a,
  abstract     = {The flow fields and heat transfer characteristics in a parallel-plate channel with a transversely placed spiral coil insert were investigated by three-dimensional numerical simulation. The structure of multi-longitudinal-vortices (MLVs) induced by the spiral coil and the effects of MLVs on velocity and temperature fields were studied. The three-dimensional spiral coil induces a series of longitudinal vortices in the channel including leading longitudinal vortex, mainstream longitudinal vortices, near-wall longitudinal vortices, and rear central longitudinal vortex. Transport by the longitudinal vortices can increase the mass exchange between the boundary layer and the mainstream, which speeds up the heat migration from the channel walls and enhances the heat diffusion in the mainstream.},
  author       = {Leng, Xue-Li and Zhang, Guan-Min and Tang, Yu-Feng and Luo, Lin-Cong and Wu, Zan and Ma, Lian-Xiang and Li, Wei},
  issn         = {1040-7782},
  language     = {eng},
  number       = {7},
  pages        = {756--772},
  publisher    = {Taylor & Francis},
  series       = {Numerical Heat Transfer Part A: Applications},
  title        = {Spiral Coil Inserts for Heat Transfer Enhancement in a Parallel-plate Channel},
  url          = {http://dx.doi.org/10.1080/10407782.2014.892355},
  volume       = {66},
  year         = {2014},
}