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Surface roughness and hydrodynamic boundary slip of a newtonian fluid in a completely wetting system

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons47658

Bonaccurso,  E.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons47688

Butt,  Hans-Jürgen
MPI for Polymer Research, Max Planck Society;

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Zitation

Bonaccurso, E., Butt, H.-J., & Craig, V. S. J. (2003). Surface roughness and hydrodynamic boundary slip of a newtonian fluid in a completely wetting system. Physical Review Letters, 90(14): 144501.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-622C-5
Zusammenfassung
The influence of surface roughness on the boundary condition for the flow of a Newtonian fluid near a hard wall has been investigated by measurement of the hydrodynamic drainage force. The degree of slip is found to increase with surface roughness. This leads to the conclusion that in most practical situations boundary slip takes place, leading to a reduction of the drainage force.