Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers

Kyung Min Kim, Suk Hwan Park, Yun Heung Jeon, Dong Hyun Lee, Hyung Hee Cho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The present study investigates the effects of secondary flow due to angled rib turbulators on the heat/mass transfer in the square channels with channel rotation and bleed flow. The angle of attack of the angled ribs was 45°. The bleed holes were located between the rib turbulators on either the leading or trailing surface. The tests were conducted under the conditions corresponding to various bleed ratios (BR = 0.0, 0.2 and 0.4) and rotation numbers (Ro=0.0, 0.2 and 0.4) at Re= 10,000. The results suggest that the heat/mass transfer characteristics were influenced by the Coriolis force, the decrement of the main flow rate and the secondary flow. In the 90° angled ribbed channel, the heat/mass transfer reduced on the leading surface with an increment in the rotation number, but it increased on the trailing surface. However, it decreased on both surfaces in the 45° angled ribbed channel. As the bleed ratio increased, the Sherwood number ratios decreased on both the bleeding and non-bleeding surfaces for the 45° angled ribs, but increased on the bleeding surface for the 90° angled ribs.

Original languageEnglish
Title of host publicationProceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air
Pages209-218
Number of pages10
DOIs
Publication statusPublished - 2007 Sep 24
Event2007 ASME Turbo Expo - Montreal, Que., Canada
Duration: 2007 May 142007 May 17

Publication series

NameProceedings of the ASME Turbo Expo
Volume4 PART A

Other

Other2007 ASME Turbo Expo
CountryCanada
CityMontreal, Que.
Period07/5/1407/5/17

Fingerprint

Mass transfer
Secondary flow
Coriolis force
Angle of attack
Hot Temperature
Flow rate

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Kim, K. M., Park, S. H., Jeon, Y. H., Lee, D. H., & Cho, H. H. (2007). Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers. In Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air (pp. 209-218). (Proceedings of the ASME Turbo Expo; Vol. 4 PART A). https://doi.org/10.1115/GT2007-27166
Kim, Kyung Min ; Park, Suk Hwan ; Jeon, Yun Heung ; Lee, Dong Hyun ; Cho, Hyung Hee. / Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers. Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air. 2007. pp. 209-218 (Proceedings of the ASME Turbo Expo).
@inproceedings{e92a8951e0f84dff894d8e95625e6930,
title = "Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers",
abstract = "The present study investigates the effects of secondary flow due to angled rib turbulators on the heat/mass transfer in the square channels with channel rotation and bleed flow. The angle of attack of the angled ribs was 45°. The bleed holes were located between the rib turbulators on either the leading or trailing surface. The tests were conducted under the conditions corresponding to various bleed ratios (BR = 0.0, 0.2 and 0.4) and rotation numbers (Ro=0.0, 0.2 and 0.4) at Re= 10,000. The results suggest that the heat/mass transfer characteristics were influenced by the Coriolis force, the decrement of the main flow rate and the secondary flow. In the 90° angled ribbed channel, the heat/mass transfer reduced on the leading surface with an increment in the rotation number, but it increased on the trailing surface. However, it decreased on both surfaces in the 45° angled ribbed channel. As the bleed ratio increased, the Sherwood number ratios decreased on both the bleeding and non-bleeding surfaces for the 45° angled ribs, but increased on the bleeding surface for the 90° angled ribs.",
author = "Kim, {Kyung Min} and Park, {Suk Hwan} and Jeon, {Yun Heung} and Lee, {Dong Hyun} and Cho, {Hyung Hee}",
year = "2007",
month = "9",
day = "24",
doi = "10.1115/GT2007-27166",
language = "English",
isbn = "079184790X",
series = "Proceedings of the ASME Turbo Expo",
pages = "209--218",
booktitle = "Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air",

}

Kim, KM, Park, SH, Jeon, YH, Lee, DH & Cho, HH 2007, Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers. in Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air. Proceedings of the ASME Turbo Expo, vol. 4 PART A, pp. 209-218, 2007 ASME Turbo Expo, Montreal, Que., Canada, 07/5/14. https://doi.org/10.1115/GT2007-27166

Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers. / Kim, Kyung Min; Park, Suk Hwan; Jeon, Yun Heung; Lee, Dong Hyun; Cho, Hyung Hee.

Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air. 2007. p. 209-218 (Proceedings of the ASME Turbo Expo; Vol. 4 PART A).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers

AU - Kim, Kyung Min

AU - Park, Suk Hwan

AU - Jeon, Yun Heung

AU - Lee, Dong Hyun

AU - Cho, Hyung Hee

PY - 2007/9/24

Y1 - 2007/9/24

N2 - The present study investigates the effects of secondary flow due to angled rib turbulators on the heat/mass transfer in the square channels with channel rotation and bleed flow. The angle of attack of the angled ribs was 45°. The bleed holes were located between the rib turbulators on either the leading or trailing surface. The tests were conducted under the conditions corresponding to various bleed ratios (BR = 0.0, 0.2 and 0.4) and rotation numbers (Ro=0.0, 0.2 and 0.4) at Re= 10,000. The results suggest that the heat/mass transfer characteristics were influenced by the Coriolis force, the decrement of the main flow rate and the secondary flow. In the 90° angled ribbed channel, the heat/mass transfer reduced on the leading surface with an increment in the rotation number, but it increased on the trailing surface. However, it decreased on both surfaces in the 45° angled ribbed channel. As the bleed ratio increased, the Sherwood number ratios decreased on both the bleeding and non-bleeding surfaces for the 45° angled ribs, but increased on the bleeding surface for the 90° angled ribs.

AB - The present study investigates the effects of secondary flow due to angled rib turbulators on the heat/mass transfer in the square channels with channel rotation and bleed flow. The angle of attack of the angled ribs was 45°. The bleed holes were located between the rib turbulators on either the leading or trailing surface. The tests were conducted under the conditions corresponding to various bleed ratios (BR = 0.0, 0.2 and 0.4) and rotation numbers (Ro=0.0, 0.2 and 0.4) at Re= 10,000. The results suggest that the heat/mass transfer characteristics were influenced by the Coriolis force, the decrement of the main flow rate and the secondary flow. In the 90° angled ribbed channel, the heat/mass transfer reduced on the leading surface with an increment in the rotation number, but it increased on the trailing surface. However, it decreased on both surfaces in the 45° angled ribbed channel. As the bleed ratio increased, the Sherwood number ratios decreased on both the bleeding and non-bleeding surfaces for the 45° angled ribs, but increased on the bleeding surface for the 90° angled ribs.

UR - http://www.scopus.com/inward/record.url?scp=34548739607&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548739607&partnerID=8YFLogxK

U2 - 10.1115/GT2007-27166

DO - 10.1115/GT2007-27166

M3 - Conference contribution

AN - SCOPUS:34548739607

SN - 079184790X

SN - 9780791847909

T3 - Proceedings of the ASME Turbo Expo

SP - 209

EP - 218

BT - Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air

ER -

Kim KM, Park SH, Jeon YH, Lee DH, Cho HH. Heat/mass transfer characteristics in angled ribbed channels with various bleed ratios and rotation numbers. In Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air. 2007. p. 209-218. (Proceedings of the ASME Turbo Expo). https://doi.org/10.1115/GT2007-27166