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

doi:10.1007/s10409-022-22062-4

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct
	Li, Xian 1,2; Zhong, Fengquan 1,2; Xing, Yunfei 2
刊名	ACTA MECHANICA SINICA
	2022-07-01
卷号	38 期号:7 页码:12
关键词	Rib height Kerosene Heat transfer enhancement Turbulent flow
ISSN号	0567-7718
DOI	10.1007/s10409-022-22062-4
通讯作者	Zhong, Fengquan(fzhong@imech.ac.cn)
英文摘要	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.
资助项目	National Natural Science Foundation of China[12072351] ; National Natural Science Foundation of China[11872367]
WOS关键词	TRANSFER ENHANCEMENT ; HYDROCARBON FUEL ; CHANNEL ; ARRANGEMENT
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000813789200003
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89309]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Zhong, Fengquan
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Xian,Zhong, Fengquan,Xing, Yunfei. Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct[J]. ACTA MECHANICA SINICA,2022,38(7):12.
APA	Li, Xian,Zhong, Fengquan,&Xing, Yunfei.(2022).Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct.ACTA MECHANICA SINICA,38(7),12.
MLA	Li, Xian,et al."Effect of rib height on turbulent flow and heat transfer of kerosene in rectangular duct".ACTA MECHANICA SINICA 38.7(2022):12.