Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct | |
Li X(李冼)1,2; Zhong FQ(仲峰泉)1,2; Xing YF(邢云绯)1 | |
Corresponding Author | Zhong, Fengquan(fzhong@imech.ac.cn) |
Source Publication | ACTA MECHANICA SINICA |
2022-07-01 | |
Volume | 38Issue:7Pages:12 |
ISSN | 0567-7718 |
Abstract | The coupling effects of rib heights and fluid properties on turbulent convective heat transfer of kerosene flow through the rectangular duct on the ribbed bottom wall are studied numerically in this paper. The numerical simulation is based on the ten components surrogate model of kerosene and the Reynolds average method combined with the re-normalized group (RNG) k-epsilon turbulence model. The turbulent vortex structures and heat transfer characteristics of kerosene flowing over rectangular ribs of different heights are obtained. The results show that three dimensional vortices are generated by the ribs, and the vortices alter local flow significantly, leading to both enhanced and reduced convective heat transfer at different locations near the ribs. In addition, it is found that with the increase of rib height, the average Nusselt number and the wall friction factor on the ribbed wall also increase. For the present study, the maximum heat transfer enhancement rate of kerosene flow is 72.16%, and the ratio of rib-to-duct height is 0.75. |
Keyword | Rib height Kerosene Heat transfer enhancement Turbulent flow |
DOI | 10.1007/s10409-022-22062-4 |
Indexed By | SCI ; EI ; CSCD |
Language | 英语 |
WOS ID | WOS:000813789200003 |
WOS Keyword | TRANSFER ENHANCEMENT ; HYDROCARBON FUEL ; CHANNEL ; ARRANGEMENT |
WOS Research Area | Engineering ; Mechanics |
WOS Subject | Engineering, Mechanical ; Mechanics |
Funding Project | National Natural Science Foundation of China[12072351] ; National Natural Science Foundation of China[11872367] |
Funding Organization | National Natural Science Foundation of China |
Classification | 二类 |
Ranking | 1 |
Contributor | Zhong, Fengquan |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/89310 |
Collection | 高温气体动力学国家重点实验室 |
Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Li X,Zhong FQ,Xing YF. Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct[J]. ACTA MECHANICA SINICA,2022,38,7,:12. |
APA | 李冼,仲峰泉,&邢云绯.(2022).Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct.ACTA MECHANICA SINICA,38(7),12. |
MLA | 李冼,et al."Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct".ACTA MECHANICA SINICA 38.7(2022):12. |
Files in This Item: | Download All | |||||
File Name/Size | DocType | Version | Access | License | ||
Jp2022FA293_2022_Eff(5257KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment