Experimental Investigation of the Evolution and Head-On Collision of Elliptic Vortex Rings

	Experimental Investigation of the Evolution and Head-On Collision of Elliptic Vortex Rings
	Chen, Bin; Wang, Zhiwei; Li, Guojie; Wang, Yechun
刊名	JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
	2016
英文摘要	The head-on collision process of elliptic vortex rings was experimentally investigated using flow-visualization technique as well as particle image velocimetry (PIV). Elliptic vortex rings were generated by the movementof a free moving elliptic piston-cylinder arrangement. It was found that the Q value is positive in the vortexcore region while negative in the regions around the vortex core, which indicates the rotational effect is dominated in the vortex core and strain effect is dominated around the vortex core. When two elliptic vortexrings move toward each other, both rings slow down and expand in diameter direction until they merge and expand in diameter direction rapidly. The collision process of two elliptic vortex rings and the newly generated vortex structure after collision are dominated by the elliptic vortex ring with larger aspect ratio andthe trajectories of vortex core almost coincide in different Reynolds numbers.
收录类别	SCI
原文出处	http://fluidsengineering.asmedigitalcollection.asme.org/article.aspx?articleid=2443168
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/10436]
专题	深圳先进技术研究院_医工所
作者单位	JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
推荐引用方式 GB/T 7714	Chen, Bin,Wang, Zhiwei,Li, Guojie,et al. Experimental Investigation of the Evolution and Head-On Collision of Elliptic Vortex Rings[J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME,2016.
APA	Chen, Bin,Wang, Zhiwei,Li, Guojie,&Wang, Yechun.(2016).Experimental Investigation of the Evolution and Head-On Collision of Elliptic Vortex Rings.JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME.
MLA	Chen, Bin,et al."Experimental Investigation of the Evolution and Head-On Collision of Elliptic Vortex Rings".JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME (2016).