南方科技大学知识苑(SUSTech KC): Heat transfer in a turbulent flow tube integrated with tori as vortex generator inserts

题名	Heat transfer in a turbulent flow tube integrated with tori as vortex generator inserts
作者	Chamoli，Sunil 1,2; Zhuang，Xiaoru1,3,4 ; Kumar Pant，Pawan 2; Yu，Peng1,3,4
通讯作者	Yu，Peng
发表日期	2021-07-25
DOI	10.1016/j.applthermaleng.2021.117062
发表期刊	APPLIED THERMAL ENGINEERING 影响因子和分区
ISSN	1359-4311
EISSN	1873-5606
卷号	194
摘要	In the present study, a new design improvement of conventional smooth tubes by inserting tori is proposed to enhance heat transfer with minimal increase of frictional penalty. Heat transfer and flow characteristics in different configurations are investigated by the numerical simulations. The effects of torus aspect ratio (AR) and torus inclination angle (α) on Nusselt number, friction factor, and performance evaluation criteria (PEC) are analyzed and discussed. The variations of average entropy generation rate (S) with AR and α are also presented. The results show that the tube integrated with tori can achieve higher average Nusselt number (Nu) and PEC than those of smooth tube. This is attributed to the improved fluid mixing, boundary layer disruption, and formation of vortex/swirl flow. Nu and average friction factor (f) increase while PEC decreases with the increase of AR. Significant enhancements of Nu and f around 1.93 to 3.36 and 4.76 to 29.05, respectively, are reported for the tori integrated tube over the smooth tube. The corresponding PEC varies from 0.94 to 1.42. All results support that torus is a favorable device for the performance improvement of tube heat exchanger.
关键词	Friction factor Heat transfer Numerical simulation Performance evaluation criteria Torus
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	Guangdong Provincial Key Laboratory of Turbulence Research and Applications[2019B21203001]
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000660532500025
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20212010359406
EI主题词	Aspect ratio ; Boundary layers ; Entropy ; Heat exchangers ; Numerical models ; Nusselt number ; Tubes (components) ; Vortex flow
EI分类号	Heat Exchange Equipment and Components:616.1 ; Pipe, Piping and Pipelines:619.1 ; Fluid Flow, General:631.1 ; Thermodynamics:641.1 ; Heat Transfer:641.2 ; Mathematics:921
ESI学科分类	ENGINEERING
Scopus记录号	2-s2.0-85105712927
来源库	Scopus
引用统计	被引频次[WOS]：22
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/229511
专题	工学院_力学与航空航天工程系
作者单位	1.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.Department of Mechanical Engineering,Govind Ballabh Pant Institute of Engineering and Technology,Pauri-Garhwal,246194,India 3.Guangdong Provincial Key Laboratory of Turbulence Research and Applications,Southern University of Science and Technology,Shenzhen,518055,China 4.Center for Complex Flows and Soft Matter Research,Southern University of Science and Technology,Shenzhen,518055,China
第一作者单位	力学与航空航天工程系
通讯作者单位	力学与航空航天工程系; 南方科技大学
第一作者的第一单位	力学与航空航天工程系
推荐引用方式 GB/T 7714	Chamoli，Sunil,Zhuang，Xiaoru,Kumar Pant，Pawan,et al. Heat transfer in a turbulent flow tube integrated with tori as vortex generator inserts[J]. APPLIED THERMAL ENGINEERING,2021,194.
APA	Chamoli，Sunil,Zhuang，Xiaoru,Kumar Pant，Pawan,&Yu，Peng.(2021).Heat transfer in a turbulent flow tube integrated with tori as vortex generator inserts.APPLIED THERMAL ENGINEERING,194.
MLA	Chamoli，Sunil,et al."Heat transfer in a turbulent flow tube integrated with tori as vortex generator inserts".APPLIED THERMAL ENGINEERING 194(2021).