Numerical and Experimental Investigation of a Streamwise Oscillating Cylinder Wake in the Presence of a Downstream Cylinder

  • Zhaoli Guo
  • Yu Zhou
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 75)


In this paper we use a newly developed lattice Boltzmann technique to simulate the wake of a streamwise oscillating cylinder in the presence of a downstream stationary cylinder. The oscillating frequency ratio f e /f s , varies between 0 and 1.8, where f e is the oscillating frequency of the upstream cylinder and f s is the natural vortex shedding frequency of an isolated stationary cylinder, and the oscillating amplitude A is fixed at 0.5 cylinder diameter, D. Three typical flow structures, depending on f e /f s and A/D, have been identified at the cylinder center-to-center spacing L/D = 3.5, which are in excellent agreement with experimental data. The lift and drag coefficients on the two cylinders are also examined for each flow structure.


Flow Structure Lattice Boltzmann Method Lift Coefficient Equilibrium Distribution Function Cylinder Wake 
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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Zhaoli Guo
    • 1
  • Yu Zhou
    • 1
  1. 1.Department of Mechanical EngineeringThe Hong Kong Polytechnic UniversityHung Hom, KowloonHong Kong

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