Flow around a Circular Cylinder with Radial Disturbances at a Low Reynolds Number

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Flow around a Circular Cylinder with Radial Disturbances at a Low Reynolds Number
	Lin LM(林黎明); Zhong XF(钟兴福); Wu YX(吴应湘)
	2013
会议名称	23rd International Offshore and Polar Engineering Conference, ISOPE-2013
会议日期	JUN 30-JUL 05, 2013
会议地点	Anchorage, Alaska, USA
关键词	radial disturbance Circular cylinder Vortex-induced vibration Suppression Riser
卷号	3
页码	387-394
通讯作者	林黎明
中文摘要	Based on the idea of geometric disturbance in suppressing vortex induced vibration (VIV), numerical simulations are carried out for a flow past a fixed circular cylinder with different wavy disturbances. Two kinds of disturbances, harmony and cone, are considered. Different wavelengths and wave heights are investigated at a Reynolds number of 100. The introduction of disturbance would increase the drag but reduce the lift for most cases. The local minimum of fluid forces exists, presently, at the non-dimensional wavelength of 6. The typical Kármán vortex is gradually disturbed with the increasing strength of disturbance. Different flow patterns are identified and discussed, such as Ω-type vortex and the complete suppression of vortex shedding. Characteristics of effect of disturbance on the generation and distribution of surface vorticity are presented in detail.
收录类别	EI
产权排序	[Lin Liming; Zhong Xingfu; Wu Yingxiang] Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
会议网址	http://www.isope.org/publications/proceedings/ISOPE/ISOPE%202013/
会议录	Proceedings of the 23rd (2013) International Offshore and Polar Engineering Conference
会议录出版者	INTERNATIONAL SOCIETY OFFSHORE & POLAR ENGINEERS
语种	英语
ISSN号	1098-6189
ISBN号	978-1-880653-99-9
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48317]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Lin LM,Zhong XF,Wu YX. Flow around a Circular Cylinder with Radial Disturbances at a Low Reynolds Number[C]. 见:23rd International Offshore and Polar Engineering Conference, ISOPE-2013. Anchorage, Alaska, USA. JUN 30-JUL 05, 2013.http://www.isope.org/publications/proceedings/ISOPE/ISOPE%202013/.