帮助 关于我们

返回检索结果

中等雷诺数圆柱尾流旋涡脱落的控制
Control of vortex shedding at moderate Reynolds numbers

查看参考文献19篇

邵传平 1   鄂学全 1   魏庆鼎 2   朱凤荣 2  
文摘 介绍通过实验对圆柱尾流旋涡脱落进行抑制的方法及其结果。实验模型的展径比为38，实验的雷诺数范围为3 * 10~2～1.6 * 10~3。抑制方法是在圆柱（直径为D）表面沿展向每隔一定间距伸出一直径0.18D、长度为1.5D的小棒，实验结果表明，当棒间距小于3D，棒与来流夹角在30 °～ 90 °范围内，可有效抑制旋涡脱落。
其他语种文摘 The suppression of vortex shedding from a circular cylinder has been studied experimentally in the Reynolds number range from 300 to 1600. The test was carried out in a water channel. The model cylinder was 1 cm in diameter, 38 cm in length. It was made of plexiglas and had a smooth surface. The cylinder was mounted on endplates at both ends and placed horizontally across the channel. Vortex shedding occurred to the cylinder in the Re number range tested. In order to suppress vortex shedding, a row of small rods of diameter 0.18 cm and length 1.5 cm were placed along the meridian of the cylinder. One end of each rod was perpendicularly connected to the surface of the cylinder, and the other end exposed to the fluid. The rod distance and the angle of attack of the rods could be changed in order to adjust the suppression effect. The rod distance range tested was l/D = 1.0 ～3.0, and the range of angle of attack was β = 0 °～ 90 °. The fluctuating velocities of the wake before and after suppression were measured by a Laser-Doppler Velometer at places 15 ～ 20 cm from the cylinder. Some typical fluctuating velocities in suppressed and unsuppressed wake and their power spectra have been given in the paper. The distributions of the root-mean-square (r.m.s.) value of fluctuating velocities across the wake have also been given. To a fixed rod distance l/D = 1.0 and Reynolds number Re = 1600, when the angle of attack is in the zone 30 ° ≤ β< 90 °, the method is very effective, vortex shedding is totally suppressed. When β is small, say, β = 0 °, the method is less effective, vortex shedding can not be suppressed. Compare to the maximum r.m.s. value of fluctuating velocity in unsuppressed wake, the values in the wakes when angle of attack β = 0 °, 30 °, 45 °, 60 ° and 90 ° can be reduced to 70%, 55%, 51%, 48% and 61% respectively. The rod distance also influences the suppression effect. To a fixed angle of attack β = 30 ° and Reynolds number Re = 1600, the maximum r.m.s. value of fluctuating velocity in rod distance l/D = 1,2,3 are respectively 55%, 61% and 64% the value of that in unsuppressed wake.
来源 力学学报 ,2002,34(4):609-615 【核心库】
关键词 流动控制 ; 旋涡脱落抑制 ; 流致振动 ; 圆柱 ; 中等雷诺数
地址

1. 中国科学院力学研究所, 北京, 100080  

2. 北京大学, 湍流与复杂系统国家重点实验室, 北京, 100871

语种 中文
文献类型 研究性论文
ISSN 0459-1879
学科 力学
基金 国家自然科学基金
文献收藏号 CSCD:1013843

参考文献 共 19 共1页

1.  Blevins R D. Flow Induced Vibration,1977 CSCD被引 1 次    
2.  Pesce C P. Vortex induced vibrations and jump phenomenon: Experiments with a clamped flexible cylinder in water. Int J Offshore & Polar Eng,2000,10(1):26-33 CSCD被引 1 次    
3.  Vandiver J K. Research challenges in the vortex induced vibration prediction of marine riser: OTC 8698, 30th Ann. SPE Offshore Tech Conf, Vol 2,1998:155-163 CSCD被引 1 次    
4.  Farnes G K. A field study of flow induced vibration on a deep water drilling riser: OTC 8702, 30th Ann. SPE Offshore Tech. Conf, Vol 2,1998:199-208 CSCD被引 1 次    
5.  Allen D W. Vortex induced vibration of deep water risers: OTC 8703, 30th Ann. SPE Offshore Tech Conf, Vol 2,1998,2:209-215 CSCD被引 1 次    
6.  Govardhan R. Modes of vortex formation and frequency response of a freely vibrating cylinder. J Fluid Mech,2000,420:85-130 CSCD被引 87 次    
7.  Newman D J. A direct numerical simulation study of flow past a freely vibrating cable. J Fluid Mech,1997,334:95-135 CSCD被引 29 次    
8.  Kitagawa T. An experimental study on vortex-induced vibration of a circular cylinder tower at a high wind speed. J Wind Eng & Indus Aerodyn,1997,69/71:731-744 CSCD被引 5 次    
9.  You D. Control of flow induced noise behind a circular cylinder using splitter plates. AIAA J,1998,36(11):1961-1967 CSCD被引 15 次    
10.  Schumm. Self-excited oscillations in the wake of two-dimensional bluff bodies and their control. J Fluid Mech,1994,271:17-53 CSCD被引 1 次    
11.  Wood C J. The effect of base bleed on a periodic wake. J R Aeronaut Soc,1964,68:477-482 CSCD被引 1 次    
12.  Berger E. Suppression of vortex shedding and turbulence behind oscillating cylinders. Phys Fluids,1967,10:s191-s193 CSCD被引 2 次    
13.  Tokumaru D T. Rotary oscillating control of a cylinder wake. J Fluid Mech,1991,224:77-90 CSCD被引 2 次    
14.  Lecordier J C. The control of vortex shedding behind heated cylinders at low Reynolds numbers. Exps Fluids,1991,10:224-229 CSCD被引 5 次    
15.  Blevins R D. The effect of sound on vortex shedding from cylinders. J Fluid Mech,1985,161:217-237 CSCD被引 9 次    
16.  Strykowsky P J. On the formation and suppression of vortex shedding at low Reynolds numbers. J Fluid Mech,1990,218:71-83 CSCD被引 3 次    
17.  Walshe D E. Preventing wind induced oscillations of structures of circular sections. Proc Inst Civil Engrs (London),1970,47:1-24 CSCD被引 2 次    
18.  Roussopoulos K. Feedback control of vortex shedding at low Reynolds numbers. J Fluid Mech,1993,248:267-296 CSCD被引 5 次    
19.  邵传平. 尾流控制与低频不稳定性. 第五届全国风工程及工业空气动力学学术会议论文集,1998:281-286 CSCD被引 1 次    
引证文献 5 篇

1 张洪军 并列双圆柱尾迹被动控制中流场特性的实验研究 水动力学研究与进展. A辑,2004,19(6):702-708
CSCD被引 4 次

2 赵钧 用涡格子CFD方法研究反应堆堆芯元件流致振动的流体力学机理 核动力工程,2006,27(2):36-39
CSCD被引 0 次

显示所有5篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护：中国科学院文献情报中心
地址：北京中关村北四环西路33号 邮政编码：100190 联系电话：(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号