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TECHNICAL PAPERS

Flow Control Using Rotating Cylinders: Effect of Gap

[+] 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 70(5), 762-770 (Oct 10, 2003) (9 pages) doi:10.1115/1.1601250 History: Received August 29, 2001; Revised February 11, 2003; Online October 10, 2003
Copyright © 2003 by ASME
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References

Figures

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Description of the relative location of the main and control cylinders
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Re=104 flow past main and control cylinders: stream function (left), pressure (middle), and magnitude of velocity (right) fields at a time instant corresponding to the peak value of the lift coefficient for the main cylinder
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Re=104 flow past main and control cylinders: variation of the x component of velocity in the gap region and close to the upper control cylinder at a time instant corresponding to the peak value of the lift coefficient for the main cylinder
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Re=104 flow past main and control cylinders: variation of pressure coefficient on the surface of main cylinder at a time instant corresponding to the peak value of the lift coefficient
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Re=104 flow past main and control cylinders: the vorticity field and its close-up at a time instant corresponding to the peak value of the lift coefficient for the main cylinder. Clockwise vorticity is in broken lines while the counter clockwise vorticity is shown in solid lines.
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Re=104 flow past main and control cylinders: time histories of the lift and drag coefficients for the main cylinder
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Re=104 flow past main and control cylinders: time histories of the lift and drag coefficients for the upper control cylinder
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Re=104 flow past main and control cylinders: variation with gap of the rms values of the unsteady force coefficients and Strouhal number
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Re=104 flow past main and control cylinders: variation with gap of the time averaged power coefficient

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