000013950 001__ 13950
000013950 005__ 20161115094006.0
000013950 04107 $$aeng
000013950 046__ $$k2016-08-21
000013950 100__ $$aChatterjee, Krishnashis
000013950 24500 $$aSlip flow in collapsing microchannels

000013950 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013950 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013950 506__ $$arestricted
000013950 520__ $$2eng$$aIn this study we investigate the effects of rarefaction on the flow through a two-dimensional microchannel driven by periodically collapsing walls. The Navier Stokes equations are linearized using lubrication theory assumptions, and slip boundary conditions are imposed. Two up-down symmetric collapse sites in the channel are periodically actuated. The axial and vertical velocities, axial pressure gradient, and time averaged flow rates are found as a function of the phase lag between the two contraction sites, with and without slip. The optimal phase lag that maximizes the flow rate increases with the value of the slip parameter, from approximately 60◦ for no slip to approximately 70◦ for the largest value of the slip parameter considered, β = 0.1. As is the case for pressure driven flow through a microchannel, adding slip is found to reduce the rate of contraction-driven flow through the microchannel.

000013950 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013950 653__ $$a

000013950 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013950 720__ $$aChatterjee, Krishnashis
000013950 8560_ $$ffischerc@itam.cas.cz
000013950 8564_ $$s62042$$uhttps://invenio.itam.cas.cz/record/13950/files/PO.FM11-1.01.61.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 1224, code PO.FM11-1.01.61).
000013950 962__ $$r13812
000013950 980__ $$aPAPER