The Effect of Free Stream Turbulence on a Circular Cylinder for Various Aspect Ratios

  • S. Szepessy
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)


Experiments have been carried to investigate the effect of free stream turbulence on fluctuating lift forces and spanwise vortex shedding correlation of a circular cylinder at Reynolds numbers between 6x103<Re<4.6x104, and aspect ratio 0.25<L/d<11. Turbulence generating grids were used that produced a maximum turbulence intensity of 6.7% and a longitudinal length scale ranging 0.6<Λx/d<1.1. Attention is focused on the difference between small and large cylinder aspect ratio. The effect of oncoming turbulence was found to be larger at small L/d.


Reynolds Number Aspect Ratio Circular Cylinder Bluff Body Large Aspect Ratio 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • S. Szepessy
    • 1
  1. 1.Department of HydromechanicsUniversity of KarlsruheKarlsruheGermany

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