Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations

doi:10.1007/s40857-021-00221-w

	Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations
	Wei, Yuliang 1,2,3; Qian, Yujie 4; Bian, Shiyuan 1,2,3; Xu, Feng 1,2,3; Kong, Deyi 1,2
刊名	ACOUSTICS AUSTRALIA
	2021-03-10
关键词	Noise reduction Propeller Trailing-edge (TE) serration Aerodynamic force Unmanned aerial vehicle (UAV)
ISSN号	0814-6039
DOI	10.1007/s40857-021-00221-w
通讯作者	Kong, Deyi(kongdy@iim.ac.cn)
英文摘要	Experimental studies were conducted at a hemi-anechoic chamber to investigate the effectiveness of trailing-edge (TE) serration designs for reducing aerodynamic noise of a propeller. The propeller noise was measured under different speeds in both the vertical and horizontal directions. The thrust force produced by the propeller was also measured at rotational speeds. The flaplet, concave and sawtooth shapes of serration were integrated on the TE of baseline propeller to obtain three different serrated propellers. The results show that the flaplet, concave and sawtooth propellers improve the thrust force more than 10% on the basis of baseline propeller. Three types of TE serration all managed to attenuate large amount of noise, while the sawtooth serrations are more effective than flaplet and concave serrations in a wider frequency range. Then, the serration distribution length (DL) of sawtooth propeller was trimmed to other three different values to obtain the 3/4-DL, 1/2-DL and 1/4-DL propellers. The 3/4-DL propeller exhibited best comprehensive performance, by an average of 2.7 and 3.0 dB noise reduction in tested two positions and simultaneously generated overall 6.7% higher thrust force than did the baseline propeller. The morphological and parametric effects of TE serration in current studies are more significant in a relative high Reynolds number (1.4 x 10(6)).
资助项目	National Natural Science Foundation of China[11774355] ; Fundamental Research Funds for the Central Universities[BC210202084]
WOS研究方向	Acoustics
语种	英语
出版者	SPRINGER SINGAPORE PTE LTD
WOS记录号	WOS:000626800400001
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121215]
专题	中国科学院合肥物质科学研究院
通讯作者	Kong, Deyi
作者单位	1.Chinese Acad Sci, Inst Intelligent Machines, Hefei Inst Phys Sci, 350 Shushanhu St, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Innovat Acad Seed Design, Hefei 230031, Anhui, Peoples R China 4.HoHai Univ, IOT Engn Coll, Changzhou 213022, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wei, Yuliang,Qian, Yujie,Bian, Shiyuan,et al. Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations[J]. ACOUSTICS AUSTRALIA,2021.
APA	Wei, Yuliang,Qian, Yujie,Bian, Shiyuan,Xu, Feng,&Kong, Deyi.(2021).Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations.ACOUSTICS AUSTRALIA.
MLA	Wei, Yuliang,et al."Experimental Study of the Performance of a Propeller with Trailing-Edge Serrations".ACOUSTICS AUSTRALIA (2021).