Macroscopic Effects of Surface Roughness in Confined Air Flow

[+] Author and Article Information
M’hamed Boutaous, Patrick Bourgin

Ecole Supérieure de Plasturgie, 85 rue Henri Becquerel, B.P. 801—01108 Oyonnax, Francee-mail: bourgin@esp-oyonnax.fr

J. Fluids Eng 126(2), 216-222 (May 03, 2004) (7 pages) doi:10.1115/1.1669034 History: Received January 23, 2003; Revised October 30, 2003; Online May 03, 2004
Copyright © 2004 by ASME
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Air layer thickness reduction versus time in the central zone: (a) rough film; (b) smooth film
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Air layer thickness reduction in the squeezed zone
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Rough film: front evolution versus time for several threshold values
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Smooth film: front evolution versus time for several threshold values
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Typical roughness profile: (a) Typical roughness profile; (b) Typical roughness profile after homogenization
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Squeeze flow experimental set-up
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Evolution of the front radius and Newton rings



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