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Volume 42 Issue 1
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(1): 172-179.
ZHOU Xiao, HU Ye, WANG Jinjunet al. Experimental analysis on flow past circular cylinder attached to frontal splitter plate[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 172-179. doi: 10.13700/j.bh.1001-5965.2015.0053(in Chinese)
Citation: ZHOU Xiao, HU Ye, WANG Jinjunet al. Experimental analysis on flow past circular cylinder attached to frontal splitter plate[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 172-179. doi: 10.13700/j.bh.1001-5965.2015.0053(in Chinese)
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Experimental analysis on flow past circular cylinder attached to frontal splitter plate

doi: 10.13700/j.bh.1001-5965.2015.0053

  • School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds:

National Natural Science Foundation of China (11302018); China Postdoctoral Science Foundation(2014M560036) 

  • Received Date: 26 Jan 2015
  • Publish Date: 20 Jan 2016
    Abstract
  • Considering the classic circular cylinder flow model, a frontal splitter plate was introduced to explore the influence on the flow past a circular cylinder in a water channel. Particle imaging velocimetry (PIV) was utilized to investigate the flow characteristics of the circular cylinder attached to a splitter plate with two different stiffness (flexible and rigid) respectively at the Reynolds number of Re=1 800. Owing to the bending deformation of the flexible plate's leading point, an additional perturbation results in the generation of vortex on the tip of the plate and even varies the dominant frequency in the wake region.In the downstream of the cylinder, the sizes of reverse flow region in the flexible plate condition and the no-plate condition are similar, while the size of reverse flow region in the rigid plate condition is larger. The experiment results show that the drag force of the circular cylinder could be reduced in a degree by the frontal splitter plate.

     

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