Large eddy simulation of turbulent flow and heat transfer in outward transverse and helically corrugated tubes
(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.
(Less)
- author
- Wang, Wei LU ; Zhang, Yaning ; Liu, Jian LU ; Li, Bingxi and Sundén, Bengt LU
- organization
- publishing date
- 2019
- 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
- 2022-04-26 01:24:37
@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}},
}