THE DRAG, LIFT AND STROUHAL NUMBER OF A CIRCULAR-SECTION CYLINDER WITH A CONIC DISTURBANCE AT SUBCRITICAL REYNOLDS NUMBERS

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-)

	THE DRAG, LIFT AND STROUHAL NUMBER OF A CIRCULAR-SECTION CYLINDER WITH A CONIC DISTURBANCE AT SUBCRITICAL REYNOLDS NUMBERS
	Lin LM(林黎明); Zhong XF(钟兴福); Wu YX(吴应湘)
	2014
会议名称	33rd ASME International Conference on Ocean, Offshore and Arctic Engineering
会议日期	JUN 08-13, 2014
会议地点	San Francisco, CA
通讯作者	Lin, LM (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China.
中文摘要	Through numerical simulations, the flow past a circular-section cylinder with a conic disturbance is investigated at subcritical Reynolds numbers of 10(2), 10(3) and 10(4). At higher Reynolds numbers, LES is employed in simulating the turbulence transition in the near wake. Computations with a series of parameters, the wavelength and wave steepness, are carried out. Generally, the drag of conic cylinder is gradually increased with the increasing wave steepness and in most cases greater than that of the cylinder without disturbance. However, the total lift in most cases is obviously reduced. The phenomenon of local minimum is found out in variation of drag and lift. The introduction of conic disturbance also leads to the decrease of frequency of vortex shedding as the wave steepness increases.
收录类别	CPCI-S ; EI
会议录	33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 2
会议录出版者	AMER SOC MECHANICAL ENGINEERS
会议录出版地	NEW YORK
语种	英语
ISBN号	978-0-7918-4540-0
WOS记录号	WOS:000363492700001
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58863]
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. THE DRAG, LIFT AND STROUHAL NUMBER OF A CIRCULAR-SECTION CYLINDER WITH A CONIC DISTURBANCE AT SUBCRITICAL REYNOLDS NUMBERS[C]. 见:33rd ASME International Conference on Ocean, Offshore and Arctic Engineering. San Francisco, CA. JUN 08-13, 2014.