Hydrodynamic drag-force measurement and slip length on microstructured surfaces
PAN, Y.
Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
Mechanical Engineering
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Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
Mechanical Engineering
Language
en
Article de revue
This item was published in
Physical Review E : Statistical, Nonlinear, and Soft Matter Physics. 2012, vol. 85, n° 6, p. 066310 (1-5)
American Physical Society
English Abstract
In this paper, a drainage experiment of water between a borosilicate sphere and a microstructured surface constituted by regularly spaced pillars is presented. The microstructured surface has two parts: on one part the ...Read more >
In this paper, a drainage experiment of water between a borosilicate sphere and a microstructured surface constituted by regularly spaced pillars is presented. The microstructured surface has two parts: on one part the liquid forms a Cassie interface and on the second it forms a Wenzel interface. The measured hydrodynamic drag force is larger on the Cassie part compared to the Wenzel part. Furthermore, for the Cassie part, from the hydrodynamic drag force measurements on a pillar and between pillars the corresponding local slip lengths have been extracted. The area average slip length on the surface is in agreement with the value expected by Philip's equation.Read less <
English Keywords
Micro- and nano- scale flow phenomena
Tribology and mechanical contacts
Atomic force microscopes
Structure of carbon nanotubes - boron nanotubes - and other related systems
Origin
Hal imported