Some exact properties of the effective slip over surfaces with hydrophobic patternings

Shear flows of viscous fluid layers over nonuniformly hydrophobic surfaces are characterized in the far-field by an effective slip velocity, which relates to the applied stress through some mobility tensor characterizing the surface. Here, we identify two methods to determine the mobility tensor for...

Full description

Bibliographic Details
Main Authors: Six, Pierre (Author), Kamrin, Kenneth N. (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering (Contributor)
Format: Article
Language:English
Published: American Institute of Physics (AIP), 2013-05-14T14:58:32Z.
Subjects:
Online Access:Get fulltext
LEADER 01330 am a22001933u 4500
001 78878
042 |a dc 
100 1 0 |a Six, Pierre  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Mechanical Engineering  |e contributor 
100 1 0 |a Kamrin, Kenneth N.  |e contributor 
700 1 0 |a Kamrin, Kenneth N.  |e author 
245 0 0 |a Some exact properties of the effective slip over surfaces with hydrophobic patternings 
260 |b American Institute of Physics (AIP),   |c 2013-05-14T14:58:32Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/78878 
520 |a Shear flows of viscous fluid layers over nonuniformly hydrophobic surfaces are characterized in the far-field by an effective slip velocity, which relates to the applied stress through some mobility tensor characterizing the surface. Here, we identify two methods to determine the mobility tensor for flat surfaces with arbitrary slip-length variations. A family of "Cross Flow Identities" is then analyzed, which equate mobility components of different unidirectional patternings. We also calculate an analytical mobility solution for a family of continuously varying patterns. We validate the results numerically and discuss implications in various limits. 
520 |a MIT-France Program 
546 |a en_US 
655 7 |a Article 
773 |t Physics of Fluids