Role of surface shape on boundary slip and velocity defect

Ali Dinler*, Robert W. Barber, David R. Emerson, Stefan K. Stefanov, Kamil Orucoglu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Although many gas-phase microfluidic devices contain curved surfaces, relatively little research has been conducted on the degree of slip over nonplanar surfaces. The present study demonstrates the influence of the surface shape (i.e., convex/concave) on the velocity slip and formation of the Knudsen layer. In addition, the study reveals that there is a simple relationship between the shear stress exerted on the surface and the velocity defect in the Knudsen layer.

Original languageEnglish
Article number016314
JournalPhysical Review E
Issue number1
Publication statusPublished - 13 Jul 2012


FundersFunder number
Seventh Framework Programme215504
Engineering and Physical Sciences Research CouncilEP/J010448/1


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