Slip Length Measurement of Confined Air Flow on Three Smooth Surfaces
PAN, Yunlu
Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
School of Mechatronics Engineering
Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
School of Mechatronics Engineering
PAN, Yunlu
Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
School of Mechatronics Engineering
< Reduce
Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics [NLB2]
School of Mechatronics Engineering
Language
en
Article de revue
This item was published in
Langmuir. 2013-04-02, vol. 29, n° 13, p. 4298-4302
American Chemical Society
English Abstract
An experimental measurement of the slip length of air flow close to three different solid surfaces is presented. The substrate was driven by a nanopositioner moving toward an oscillating glass sphere glued to an atomic ...Read more >
An experimental measurement of the slip length of air flow close to three different solid surfaces is presented. The substrate was driven by a nanopositioner moving toward an oscillating glass sphere glued to an atomic force microscopy (AFM) cantilever. A large separation distance was used to get more effective data. The slip length value was obtained by analyzing the amplitude and phase data of the cantilever. The measurements show that the slip length does not depend on the oscillation amplitude of the cantilever. Because of the small difference among the slip lengths of the three surfaces, a simplified analysis method was used. The results show that on glass, graphite, and mica surfaces the slip lengths are 98, 234, and 110 nm, respectively.Read less <
Origin
Hal imported