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TECHNICAL PAPERS

Flow Past a Spinning Sphere With Surface Blowing and Heat Transfer

[+] Author and Article Information
H. Niazmand, M. Renksizbulut

Mechanical Engineering Department, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

J. Fluids Eng 127(1), 163-171 (Mar 22, 2005) (9 pages) doi:10.1115/1.1852471 History: Received November 02, 2003; Revised September 20, 2004; Online March 22, 2005
Copyright © 2005 by ASME
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References

Figures

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Flow geometry and coordinates
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Drag coefficient and separation angle histories for an impulsively started solid sphere
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(a)–(b). Streamlines at Re=20: (a) no spin, (b) Ωx=1.
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(a)–(c). Streamlines at Re=100: (a) no spin or blowing, (b) spin only, and (c) spin and blowing.
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Drag coefficient histories at Re=100 for different spinning speeds
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Nusselt number histories at Re=100 for different spinning speeds
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Nusselt number histories at Re=100 for different spinning speeds and surface blowing
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Drag coefficient histories at Re=200 for different spinning speeds and surface blowing
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Lift coefficient histories at Re=200 for different spinning speeds and surface blowing
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Nusselt number histories at Re=200 for different spinning speeds and surface blowing
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Isotherms in one cycle for flow over a spinning sphere at Re=200 with Ωx=1
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(a)–(b). Drag and lift coefficients at Re=250 for different spinning speeds.
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The components of the lift coefficient at Re=250 with Ωx=0.25
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Nusselt number histories at Re=250 for different spinning speeds
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Lift and drag coefficient histories at Re=250 with surface blowing
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(a)–(b). Drag and lift coefficient histories at Re=300 for different spinning speeds.
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Effects of particle spin on the time-averaged lift and drag coefficients at Re=300
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Nusselt number histories at Re=300 for different spinning speeds
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Lift and drag coefficient histories at Re=300 with surface blowing
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Drag coefficient correlation and numerical data
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Heat transfer correlation and numerical data

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