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TECHNICAL PAPERS

Three-Dimensional Instabilities in Flow Past a Rotating Cylinder

[+] Author and Article Information
S. Mittal

Department of Aerospace Engineering, Indian Institute of Technology, Kanpur, UP 208 016, Indiae-mail: smittal@iitk.ac.in

J. Appl. Mech 71(1), 89-95 (Mar 17, 2004) (7 pages) doi:10.1115/1.1631032 History: Received December 18, 2002; Revised April 21, 2003; Online March 17, 2004
Copyright © 2004 by ASME
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References

Figures

Grahic Jump Location
Re=200,α=5 flow past a rotating cylinder: closeup view of the vorticity (left) and magnitude of velocity (right) for the fully developed two-dimensional flow. The freestream flow is from left to right and the cylinder is rotating in a counterclockwise sense. Solid lines denote positive while the broken lines show negative vorticity.
Grahic Jump Location
Re=200,α=5 flow past a rotating cylinder: time histories of the lift and drag coefficients for two-dimensional and three-dimensional computations with cylinders of various aspect ratios (AR)
Grahic Jump Location
Re=200,α=5 flow past a rotating cylinder for various aspect ratios: variation of the spanwise averaged pressure coefficient on the surface of cylinder
Grahic Jump Location
Re=200,α=5 flow past a rotating cylinder: isosurfaces of the spanwise component of vorticity (=0.4) for various aspect ratios. The top frame corresponds to the simulation with slip walls as the end condition. For the other three frames, the upper wall is a no-slip wall.
Grahic Jump Location
Re=200,α=5,AR=15 flow past a rotating cylinder with a no-slip end wall: isosurfaces of the spanwise component of vorticity (=0.4) at various time instants following an impulsive start

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