Numerical Study on Dynamic-Stall Characteristics of Finite Wing and Rotor

doi:10.3390/app9030600

	Numerical Study on Dynamic-Stall Characteristics of Finite Wing and Rotor
	Wang, Qing 1; Zhao, Qijun 2
刊名	APPLIED SCIENCES-BASEL
	2019-02
卷号	9 期号:3
关键词	helicopter rotor unsteady aerodynamics dynamic stall RANS equations
ISSN号	2076-3417
DOI	10.3390/app9030600
英文摘要	To study the three-dimensional effects on the dynamic-stall characteristics of a rotor blade, the unsteady flowfields of the finite wing and rotor were simulated under dynamic-stall conditions, respectively. Unsteady Reynolds-averaged Navier-Stokes (URANS) equations coupled with a third-order Roe-MUSCL spatial discretization scheme were chosen as the governing equations to predict the three-dimensional flowfields. It is indicated from the simulated results of a finite wing that dynamic stall would be restricted near the wing tip due to the influence of the wing-tip vortex. By comparing the simulated results of the finite wing with the spanwise flow, it is indicated that the spanwise flow would arouse vortex accumulation. Consequently, the dynamic stall is restricted near the wing root and aggravated near the wing tip. By comparing the simulated results of a rotor in forward flight, it is indicated that the dynamic stall of the rotor would be inhibited due to the effects of the spanwise flow and Coriolis force. This work fills the gap regarding the insufficient three-dimensional dynamic stall of a helicopter rotor, and could be used to guide rotor airfoil shape design in the future.
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000459976200240
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32118]
专题	能源与动力工程学院
通讯作者	Zhao, Qijun
作者单位	1.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Natl Key Lab Sci & Technol Rotorcraft Aeromech, Nanjing 210016, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qing,Zhao, Qijun. Numerical Study on Dynamic-Stall Characteristics of Finite Wing and Rotor[J]. APPLIED SCIENCES-BASEL,2019,9(3).
APA	Wang, Qing,&Zhao, Qijun.(2019).Numerical Study on Dynamic-Stall Characteristics of Finite Wing and Rotor.APPLIED SCIENCES-BASEL,9(3).
MLA	Wang, Qing,et al."Numerical Study on Dynamic-Stall Characteristics of Finite Wing and Rotor".APPLIED SCIENCES-BASEL 9.3(2019).