Role of surface shape on boundary slip and velocity defect

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

doi:10.1103/PhysRevE.86.016314

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

Department of Mathematics Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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 language	English
Article number	016314
Journal	Physical Review E
Volume	86
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.86.016314
Publication status	Published - 13 Jul 2012

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10.1103/PhysRevE.86.016314

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title = "Role of surface shape on boundary slip and velocity defect",

abstract = "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.",

author = "Ali Dinler and Barber, {Robert W.} and Emerson, {David R.} and Stefanov, {Stefan K.} and Kamil Orucoglu",

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AU - Barber, Robert W.

AU - Emerson, David R.

AU - Stefanov, Stefan K.

AU - Orucoglu, Kamil

PY - 2012/7/13

Y1 - 2012/7/13

N2 - 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.

AB - 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.

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Role of surface shape on boundary slip and velocity defect

Abstract

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