Volume 6 Issue 4
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Yong-tao WANG, Zhong-min YAN, Hui-min WANG. 2013: Numerical simulation of low-Reynolds number flows past two tandem cylinders of different diameters. Water Science and Engineering, 6(4): 433-445. doi: 10.3882/j.issn.1674-2370.2013.04.007
Citation: Yong-tao WANG, Zhong-min YAN, Hui-min WANG. 2013: Numerical simulation of low-Reynolds number flows past two tandem cylinders of different diameters. Water Science and Engineering, 6(4): 433-445. doi: 10.3882/j.issn.1674-2370.2013.04.007
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Numerical simulation of low-Reynolds number flows past two tandem cylinders of different diameters

doi: 10.3882/j.issn.1674-2370.2013.04.007
  • 1.

    College of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215011, P. R. China

  • 2.

    College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, P. R. China

  • 3.

    College of Environment, Hohai University, Nanjing 210098, P. R. China

Funds:  This work was supported by the National Natural Science Foundation of China (Grant No. 40871050).
More Information
  • Corresponding author: Yong-tao WANG
  • Received Date: 2012-03-02
  • Rev Recd Date: 2013-05-13
    Abstract
  • The flow past two tandem circular cylinders of different diameters was simulated using the ?nite volume method. The diameter of the downstream main cylinder (D) was kept constant, and the diameter of the upstream control cylinder (d) varied from 0.1D to D. The studied Reynolds numbers based on the diameter of the downstream main cylinder were 100 and 150. The gap between the control cylinder and the main cylinder (G) ranged from 0.1D to 4D. It is concluded that the gap-to-diameter ratio (G/D) and the diameter ratio between the two cylinders (d/D) have important effects on the drag and lift coef?cients, pressure distributions around the cylinders, vortex shedding frequencies from the two cylinders, and ?ow characteristics.

     

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