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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 AuthorZhong, Fengquan(fzhong@imech.ac.cn)
Source PublicationACTA MECHANICA SINICA
2022-07-01
Volume38Issue:7Pages:12
ISSN0567-7718
AbstractThe 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.
KeywordRib height Kerosene Heat transfer enhancement Turbulent flow
DOI10.1007/s10409-022-22062-4
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000813789200003
WOS KeywordTRANSFER ENHANCEMENT ; HYDROCARBON FUEL ; CHANNEL ; ARRANGEMENT
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding ProjectNational Natural Science Foundation of China[12072351] ; National Natural Science Foundation of China[11872367]
Funding OrganizationNational Natural Science Foundation of China
Classification二类
Ranking1
ContributorZhong, Fengquan
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/89310
Collection高温气体动力学国家重点实验室
Affiliation1.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.
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