南方科技大学知识苑(SUSTech KC): Effect of Airfoil Dimple on Low-Reynolds-Number Differing Laminar Separation Behavior via Multi-Objective Optimization

题名	Effect of Airfoil Dimple on Low-Reynolds-Number Differing Laminar Separation Behavior via Multi-Objective Optimization
作者	Liang, Yu1,3 ; Yang, Yannian2 ; Shan, Xiaowen2 ; Wang, Zican 2
通讯作者	Liang, Yu
发表日期	2022-04-01
DOI	10.2514/1.C036558
发表期刊	JOURNAL OF AIRCRAFT 影响因子和分区
ISSN	0021-8669
EISSN	1533-3868
摘要	Micro air vehicles and vertical-takeoff-and-landing drones usually operate at relatively low values of the Reynolds number (Re=10(4)-10(5)). In the present study, three airfoils from different categories (AG14, BE50, and SD7032) are studied at Re=40,000-80,000. How the behavior of the laminar separation bubble changes with the Reynolds number is investigated and is found to give rise to differing aerodynamic forces that can severely degrade the aerodynamic performance of low-Reynolds-number airfoils. To obtain airfoils with satisfactory aerodynamic performance over a wide range of low Reynolds number, a multi-objective optimization approach is proposed and implemented with different design considerations. The airfoils optimized at these Reynolds numbers have a geometric dimple, as confirmed by unsteady Reynolds-averaged Navier-Stokes simulations with a transition model, and by particle image velocimetry wind-tunnel testing. The dimple is effective in restricting the location and size of the laminar separation bubble, leading to robust and significantly improved aerodynamic performance. Also studied is how the number of nonuniform rational B-spline control points affects the optimum airfoil results, and the dimple always appears in the optimum geometry for Re=40,000-80,000.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0103] ; National Science Foundation of China[91752204]
WOS研究方向	Engineering
WOS类目	Engineering, Aerospace
WOS记录号	WOS:000790036100001
出版者	AMER INST AERONAUTICS ASTRONAUTICS
ESI学科分类	ENGINEERING
来源库	Web of Science
引用统计	被引频次[WOS]：6
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/334355
专题	工学院_力学与航空航天工程系
作者单位	1.Southern Univ Sci & Technol, Southern Marine Sci & Engn, Guangdong Lab, Shenzhen 511458, Guangdong, Peoples R China 2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Guangdong Lab, Southern Marine Sci & Engn, 511458Guangzhou, Shenzhen 518055, Peoples R China 3.Acad Adv Interdisciplinary Studies, Guangzhou 511458, Guangdong, Peoples R China
第一作者单位	南方科技大学
通讯作者单位	南方科技大学
第一作者的第一单位	南方科技大学
推荐引用方式 GB/T 7714	Liang, Yu,Yang, Yannian,Shan, Xiaowen,et al. Effect of Airfoil Dimple on Low-Reynolds-Number Differing Laminar Separation Behavior via Multi-Objective Optimization[J]. JOURNAL OF AIRCRAFT,2022.
APA	Liang, Yu,Yang, Yannian,Shan, Xiaowen,&Wang, Zican.(2022).Effect of Airfoil Dimple on Low-Reynolds-Number Differing Laminar Separation Behavior via Multi-Objective Optimization.JOURNAL OF AIRCRAFT.
MLA	Liang, Yu,et al."Effect of Airfoil Dimple on Low-Reynolds-Number Differing Laminar Separation Behavior via Multi-Objective Optimization".JOURNAL OF AIRCRAFT (2022).