Heat transfer study on a hybrid smooth and spirally corrugated tube
(2018) 11th International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2018 In MATEC Web of Conferences 240.- Abstract
Corrugated tubes are widely used in a range of applications for heat transfer enhancement. The spirally corrugated tube has a better heat transfer performance than the smooth tube. In this paper, the heat transfer performance of a hybrid smooth and six-start spirally corrugated tube is studied. With a validated numerical model, the effects of the corrugation part length on the vortex in the downstream smooth tube are studied for a range of high Reynolds numbers, where the existence of the corrugation part can turn out the secondary flow and enhance heat transfer. Meanwhile, it is found that in the smooth part, the fluid flow part with whirling can reach a maximum length, even if the length of the corrugation part continuously increases.... (More)
Corrugated tubes are widely used in a range of applications for heat transfer enhancement. The spirally corrugated tube has a better heat transfer performance than the smooth tube. In this paper, the heat transfer performance of a hybrid smooth and six-start spirally corrugated tube is studied. With a validated numerical model, the effects of the corrugation part length on the vortex in the downstream smooth tube are studied for a range of high Reynolds numbers, where the existence of the corrugation part can turn out the secondary flow and enhance heat transfer. Meanwhile, it is found that in the smooth part, the fluid flow part with whirling can reach a maximum length, even if the length of the corrugation part continuously increases. Thus a series of critical corrugation lengths can be obtained. This work can reveal the enhanced heat transfer mechanism of the hybrid smooth and spirally corrugated tube and be of interest to researchers in heat transfer issues of corrugated tubes.
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- author
- Yang, Chen ; Chen, Min Rui ; Qian, Jin Yuan LU ; Wu, Zan LU ; Jin, Zhi Jiang and Sunden, Bengt LU
- organization
- publishing date
- 2018-11-27
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018)
- series title
- MATEC Web of Conferences
- volume
- 240
- article number
- 01038
- publisher
- EDP Sciences
- conference name
- 11th International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2018
- conference location
- Cracow, Poland
- conference dates
- 2018-05-21 - 2018-05-24
- external identifiers
-
- scopus:85058209451
- DOI
- 10.1051/matecconf/201824001038
- language
- English
- LU publication?
- yes
- id
- 2546371d-6c65-462f-861c-9d1b544b24d8
- date added to LUP
- 2019-01-04 12:35:28
- date last changed
- 2023-09-08 15:19:33
@inproceedings{2546371d-6c65-462f-861c-9d1b544b24d8, abstract = {{<p>Corrugated tubes are widely used in a range of applications for heat transfer enhancement. The spirally corrugated tube has a better heat transfer performance than the smooth tube. In this paper, the heat transfer performance of a hybrid smooth and six-start spirally corrugated tube is studied. With a validated numerical model, the effects of the corrugation part length on the vortex in the downstream smooth tube are studied for a range of high Reynolds numbers, where the existence of the corrugation part can turn out the secondary flow and enhance heat transfer. Meanwhile, it is found that in the smooth part, the fluid flow part with whirling can reach a maximum length, even if the length of the corrugation part continuously increases. Thus a series of critical corrugation lengths can be obtained. This work can reveal the enhanced heat transfer mechanism of the hybrid smooth and spirally corrugated tube and be of interest to researchers in heat transfer issues of corrugated tubes.</p>}}, author = {{Yang, Chen and Chen, Min Rui and Qian, Jin Yuan and Wu, Zan and Jin, Zhi Jiang and Sunden, Bengt}}, booktitle = {{XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018)}}, language = {{eng}}, month = {{11}}, publisher = {{EDP Sciences}}, series = {{MATEC Web of Conferences}}, title = {{Heat transfer study on a hybrid smooth and spirally corrugated tube}}, url = {{http://dx.doi.org/10.1051/matecconf/201824001038}}, doi = {{10.1051/matecconf/201824001038}}, volume = {{240}}, year = {{2018}}, }