Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct

doi:10.1007/s10409-022-22062-4

	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
通讯作者	Zhong, Fengquan([email protected])
发表期刊	ACTA MECHANICA SINICA
	2022-07-01
卷号	38 期号:7 页码:12
ISSN	0567-7718
摘要	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.
关键词	Rib height Kerosene Heat transfer enhancement Turbulent flow
DOI	10.1007/s10409-022-22062-4
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000813789200003
关键词[WOS]	TRANSFER ENHANCEMENT ; HYDROCARBON FUEL ; CHANNEL ; ARRANGEMENT
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
资助项目	National Natural Science Foundation of China[12072351] ; National Natural Science Foundation of China[11872367]
项目资助者	National Natural Science Foundation of China
论文分区	二类
力学所作者排名	1
RpAuthor	Zhong, Fengquan
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89310
专题	高温气体动力学国家重点实验室
作者单位	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
推荐引用方式 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.Rp_Au:Zhong, Fengquan
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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