Effects of a higher Reynolds number and introduced perforation on flows past the conic cylinder

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	Effects of a higher Reynolds number and introduced perforation on flows past the conic cylinder
	Lin LM(林黎明); Zhong XF(钟兴福); Wu YX(吴应湘)
会议录名称	Proceedings of the International Offshore and Polar Engineering Conference
	2015
会议名称	25th International Ocean and Polar Engineering Conference, ISOPE 2015
会议日期	June 21, 2015 - June 26, 2015
会议地点	Kona, Big Island, HI, United states
摘要	Through numerical simulations, effects of a higher Reynolds number (105) and the introduction of perforation at a lower Reynolds number (102) on flows past a circular cylinder with the conic disturbance are investigated. Particularly, circular holes are located on and uniformly distributed around the peak of the conic shroud. Results have been shown that the higher Reynolds number of 105has little effect on qualitative variations of the drag and lift coefficients and the frequency of vortex shedding in most cases, which are almost similar to those at lower Reynolds numbers, as well as the introduced perforation. Nevertheless, there are still several exceptional cases with different hydrodynamic parameters resulted from the introduction of perforation. And different disturbance regimes and vortex patterns in the near wake for these cases are identified and presented in detail. Copyright © 2015 by the International Society of Offshore and Polar Engineers (ISOPE).
关键词	Circular Holes Conic Disturbance Disturbance Regime Drag And Lift Coefficients Hydrodynamic Parameters Near Wake Vortex Induced Vibration Vortex Pattern
课题组名称	LMFS多相流及流固耦合(LHO)
ISBN号	9781880653890
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/311007/60168
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Lin LM,Zhong XF,Wu YX. Effects of a higher Reynolds number and introduced perforation on flows past the conic cylinder[C]Proceedings of the International Offshore and Polar Engineering Conference,2015.

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