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); Lin, LM (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China. | |
Source Publication | 33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 2 |
2014 | |
Conference Name | 33rd ASME International Conference on Ocean, Offshore and Arctic Engineering |
Conference Date | JUN 08-13, 2014 |
Conference Place | San Francisco, CA |
Abstract | 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. |
WOS ID | WOS:000363492700001 |
Department | LMFS多相流及流固耦合(LHO) |
ISBN | 978-0-7918-4540-0 |
Indexed By | CPCI-S ; EI |
Language | 英语 |
Citation statistics | |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/58863 |
Collection | 流固耦合系统力学重点实验室 |
Corresponding Author | Lin, LM (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China. |
Recommended Citation GB/T 7714 | Lin LM,Zhong XF,Wu YX,et al. THE DRAG, LIFT AND STROUHAL NUMBER OF A CIRCULAR-SECTION CYLINDER WITH A CONIC DISTURBANCE AT SUBCRITICAL REYNOLDS NUMBERS[C]33RD INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2014, VOL 2,2014. |
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