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Direct experimental evidences for flow with slip at hexadecane - solid interfaces

Published online by Cambridge University Press:  25 October 2002

R. Pit ,
H. Hervet  and
L. Léger
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Abstract

The limit condition for the flow rate at the wall for a Newtonian fluid with various solid/liquid interfaces was studied experimentally using an original high resolution technique. A notable interfacial slipping was shown for the hexadecane flowing on a surface with low roughness and covered with methyl groups (non wetting surface for the hexadecane). The systematic study of various modified surfaces made it possible to identify two key parameters fixing the amplitude of slipping at the wall and acting in an antagonistic way on the roughness of the surface (geometric and chemical) and the fluid/surface interactions.

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Type
Research Article
Information
Metallurgical Research & Technology , Volume 98 , Issue 2: Tribologie de la mise en forme des métaux , February 2001 , pp. 169 - 174
Copyright
© La Revue de Métallurgie, 2001

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