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

IMECH-IR > 流固耦合系统力学重点实验室

	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)
会议录名称	Proceedings of the 23rd (2013) International Offshore and Polar Engineering Conference
	2013
页码	387-394
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
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.
关键词	Radial Disturbance Circular Cylinder Vortex-induced Vibration Suppression Riser
课题组名称	LMFS多相流及流固耦合(LHO)
ISBN号	978-1-880653-99-9
URL	查看原文
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48317
专题	流固耦合系统力学重点实验室
通讯作者	Lin LM(林黎明)
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]Proceedings of the 23rd (2013) International Offshore and Polar Engineering Conference,2013:387-394.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-Conf2013-012.p（565KB）			开放获取	--	浏览下载