Sudden contraction effects in nanochannel cross section on the rarefied gas flow characteristics: LBM analysis

2020 ◽  
Vol 135 (10) ◽  
Author(s):  
Ehsan Kamali Ahangar ◽  
Javad Abolfazli Esfahani ◽  
Mohammad Bagher Ayani
Keyword(s):  
Cross Section ◽  
Gas Flow ◽  
Rarefied Gas ◽  
Flow Characteristics ◽  
Rarefied Gas Flow ◽  
Sudden Contraction

Investigation of rarefied gas flow in microchannels of non-uniform cross section

2016 ◽  
Vol 28 (2) ◽  
pp. 022007 ◽  
Author(s):  
Vadiraj Hemadri ◽  
Vijay V. Varade ◽  
Amit Agrawal ◽  
U. V. Bhandarkar
Keyword(s):  
Cross Section ◽  
Gas Flow ◽  
Rarefied Gas ◽  
Rarefied Gas Flow ◽  
Uniform Cross Section

A Criterion for the Experimental Validation of the Slip-Flow Models for Incompressible Rarefied Gases Through Microchannels

2004 ◽  
Author(s):  
G. L. Morini ◽  
M. Lorenzini ◽  
M. Spiga
Keyword(s):  
Friction Factor ◽  
Cross Section ◽  
Gas Flow ◽  
Experimental Validation ◽  
Rarefied Gas ◽  
Slip Flow ◽  
Rarefied Gas Flow ◽  
Flow Models ◽  
Flow Through ◽  
Rarefaction Effects

This paper is devoted to analyzing the friction factor of incompressible rarefied gas flow through microchannels. A theoretical investigation is conducted in order to underline the conditions for experimentally evidencing rarefaction effects on the pressure drop. It is demonstrated that for a fixed geometry of the microchannel cross section it is possible to calculate the minimum value of the Knudsen number for which the rarefaction effects can be observed experimentally, taking into account the experimental uncertainties on the evaluation of the friction factor.

Rarefied gas flow through a pipe of variable square cross section into vacuum

2013 ◽  
Vol 53 (8) ◽  
pp. 1221-1230 ◽  
Author(s):  
V. A. Titarev ◽  
S. V. Utyuzhnikov ◽  
E. M. Shakhov
Keyword(s):  
Cross Section ◽  
Gas Flow ◽  
Rarefied Gas ◽  
Rarefied Gas Flow ◽  
Flow Through
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