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TECHNICAL PAPERS

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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References

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Boutaous, M., Bourgin, P., and Woehl, P., 2001, “Periodic Homogeneization Techniques as a Way to Account for Surface Roughness in a Confined air Flow,” Proc. ASME, I MECE, New York (USA), November 2001.
Boutaous, M., and Bourgin, P., 1997, “Experimental Study of Squeeze Film Between One Smooth Surface and One Rough Surface,” Proceedings of the 4th Int. Conference on Web Handling, pp. 224–234, Oklahoma, USA.
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Figures

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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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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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