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Large eddy simulation of turbulent flow and heat transfer in outward transverse and helically corrugated tubes

Wang, Wei LU ; Zhang, Yaning ; Liu, Jian LU ; Li, Bingxi and Sundén, Bengt LU (2019) In Numerical Heat Transfer; Part A: Applications 75(7). p.456-468
Abstract

Turbulent flow and heat transfer in outward transverse and helically corrugated tubes are performed with large eddy simulation by the ANSYS Fluent software. The prediction accuracy is validated by comparison with experimental data and empirical correlations for a wavy surface wall and smooth tube, respectively. The turbulent flow patterns, local heat transfer, and friction factor are discussed. The results show that the secondary and turbulent eddies are inhibited by the spiral flow. Otherwise, the flow impact of the wall is the key factor for heat transfer enhancement, and the spiral flow has of small effect on heat transfer performance, however it can decrease the flow resistance significantly. The overall heat transfer performance... (More)

Turbulent flow and heat transfer in outward transverse and helically corrugated tubes are performed with large eddy simulation by the ANSYS Fluent software. The prediction accuracy is validated by comparison with experimental data and empirical correlations for a wavy surface wall and smooth tube, respectively. The turbulent flow patterns, local heat transfer, and friction factor are discussed. The results show that the secondary and turbulent eddies are inhibited by the spiral flow. Otherwise, the flow impact of the wall is the key factor for heat transfer enhancement, and the spiral flow has of small effect on heat transfer performance, however it can decrease the flow resistance significantly. The overall heat transfer performance for the helical corrugated tube is 1.23, which is superior to the value of 1.18 for the transverse corrugated tube.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Numerical Heat Transfer; Part A: Applications
volume
75
issue
7
pages
13 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85066118635
ISSN
1040-7782
DOI
10.1080/10407782.2019.1608763
language
English
LU publication?
yes
id
a24a318f-8dcf-4804-acd5-04b87f97837f
date added to LUP
2019-06-13 09:50:41
date last changed
2020-03-24 06:54:34
@article{a24a318f-8dcf-4804-acd5-04b87f97837f,
  abstract     = {<p>Turbulent flow and heat transfer in outward transverse and helically corrugated tubes are performed with large eddy simulation by the ANSYS Fluent software. The prediction accuracy is validated by comparison with experimental data and empirical correlations for a wavy surface wall and smooth tube, respectively. The turbulent flow patterns, local heat transfer, and friction factor are discussed. The results show that the secondary and turbulent eddies are inhibited by the spiral flow. Otherwise, the flow impact of the wall is the key factor for heat transfer enhancement, and the spiral flow has of small effect on heat transfer performance, however it can decrease the flow resistance significantly. The overall heat transfer performance for the helical corrugated tube is 1.23, which is superior to the value of 1.18 for the transverse corrugated tube.</p>},
  author       = {Wang, Wei and Zhang, Yaning and Liu, Jian and Li, Bingxi and Sundén, Bengt},
  issn         = {1040-7782},
  language     = {eng},
  number       = {7},
  pages        = {456--468},
  publisher    = {Taylor & Francis},
  series       = {Numerical Heat Transfer; Part A: Applications},
  title        = {Large eddy simulation of turbulent flow and heat transfer in outward transverse and helically corrugated tubes},
  url          = {http://dx.doi.org/10.1080/10407782.2019.1608763},
  doi          = {10.1080/10407782.2019.1608763},
  volume       = {75},
  year         = {2019},
}