Reynolds number effect on aerodynamic characteristics of a rotating circular cylinder

被引：0
|
作者：
Ma W. [1 ,2 ,3 ]
Liu J. [1 ]
Zhang X. [1 ]
Li Y. [1 ]
机构：
[1] School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang
[2] Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang
[3] State Key Lab of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 07期
关键词：
Aerodynamic characteristic; Reynolds number; Rotating circular cylinder; Rotation ratio; Wind tunnel test;
D O I：
10.13465/j.cnki.jvs.2022.07.006
中图分类号：
学科分类号：
摘要：
The asymmetric flow field around a rotating cylinder can produce a lateral force (lift) on the cylinder. This force has a wide application prospect in navigation and wind energy utilization. Studying aerodynamic characteristics of a rotating cylinder is of great significance for these applications. By measuring aerodynamic force and wake field of a rotating cylinder under different rotating speeds and wind speeds, aerodynamic characteristics of a rotating cylinder within different Reynolds number ranges were discussed here. The results showed that Reynolds number is an important factor to affect aerodynamic force of a rotating cylinder, the lift of a rotating cylinder in subcritical region mainly reveals Magnus effect, it points to the side of tangential velocity and wind speed with the same direction, and increases with increase in rotating speed ratio; in critical region, cylinder rotating can induce reattachment of fluid at the side of tangential velocity direction being opposite to that of wind speed to form a lift pointing to this side, with increase in rotating speed, the lift can't vary obviously; rotating speed can affect Reynolds number effect, with increase in rotating speed, Reynolds number with resistance loss can become smaller, and the range of Reynolds number with reattachment phenomenon can become larger. © 2022, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：46 / 52
页数：6
相关论文
共 20 条
  • [1] HASTINGS R B., The Flettner "rotor ship"[J], Journal of the American Society for Naval Engineers, 37, 1, pp. 156-159, (2010)
  • [2] FIESSER L., UniKat-Flensburg. Flettner-Rotor als alternativer Schiffsantrieb [J], Physik in Unserer Zt, 40, 5, pp. 256-259, (2010)
  • [3] CRIMI P., Performance assessment of a flettner wind turbine [J], Journal of Energy, 4, 6, pp. 281-283, (1980)
  • [4] ZDRAVKOVICH M M., Flow around circular cylinder, Vol.1, Fundamentals, (1997)
  • [5] MAGNUS G., On the deflection of a projectile, Poggendorffs Annalen der Physik und Chemie, 88, 1, pp. 804-810, (1853)
  • [6] PEZZOTTI S, MORA V N, SANZ ANDRES A, Et al., Experimental study of the Magnus effect in cylindrical bodies with 4, 6, 8 and 10 sides [J], Journal of Wind Engineering and Industrial Aerodynamics, 197, (2020)
  • [7] SWANSON W M., The magnus effect: a summary of investigations to date, Journal of Basic Engineering, 83, 3, pp. 461-470, (1961)
  • [8] TAKAYAMA S, AOKI K., Flow characteristics around a rotating grooved circular cylinder with grooved of different depths, Journal of Visualization, 8, 4, pp. 295-303, (2005)
  • [9] BADALAMENTI C., On the application of rotating cylinders to micro air vehicles, (2010)
  • [10] BORDOGNA G, MUGGIASCA S, GIAPPINO S, Et al., Experiments on a flettner rotor at critical and supercritical Reynolds numbers, Journal of Wind Engineering & Industrial Aerodynamics, 188, pp. 19-29, (2019)
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