Role of surface shape on boundary slip and velocity defect.
Phys Rev E Stat Nonlin Soft Matter Phys
; 86(1 Pt 2): 016314, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-23005532
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.
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Base de dados:
MEDLINE
Assunto principal:
Microfluídica
/
Gases
/
Modelos Teóricos
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article