NDLI: Rarefied gas flow of binary mixtures through long channels with triangular and trapezoidal cross sections

Content Provider	Springer Nature Link
Author	Szalmas, Lajos Valougeorgis, Dimitris
Copyright Year	2010
Abstract	The flow of binary gas mixtures through long micro-channels with triangular and trapezoidal cross sections is investigated in the whole range of the Knudsen number. The flow is driven by pressure and concentration gradients. The McCormack kinetic model is utilized to simulate the rarefied flow of the gas mixture, and the kinetic equations are solved by an upgraded discrete velocity algorithm. The kinetic dimensionless flow rates are tabulated for selected noble gas mixtures flowing through micro-channels etched by KOH in silicon (triangular and trapezoidal channels with acute angle of 54.74°). Furthermore, the complete procedure to obtain the mass flow rate for a gas mixture flowing through a channel, based on the dimensionless kinetic results, which are valid in each cross section of the channel, is presented. The study includes the effect of the separation phenomenon. It is shown that gas separation may change significantly the estimated mass flow rate. The presented methodology can be used for engineering purposes and for the accurate comparison with experimental results.
Starting Page	471
Ending Page	487
Page Count	17
File Format	PDF
ISSN	16134982
Journal	Microfluidics and Nanofluidics
Volume Number	9
Issue Number	2-3
e-ISSN	16134990
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-01-21
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rarefied gas flows Binary mixtures Gas separation Discrete velocity method Biomedical Engineering Engineering Fluid Dynamics
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials

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