Numerical Analysis of Rarefied Gas Flow through a System of Short Channels-Reference-Cited by-同舟云学术

Numerical Analysis of Rarefied Gas Flow through a System of Short Channels

Published:2023-12-01 Issue:12 Volume:63 Page:1942-1959
ISSN:0044-4669
Container-title:Журнал вычислительной математики и математической физики
language:
Short-container-title:Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki

Author:

Voronich I. V.¹,Titarev V. A.²

Affiliation:

1. Federal Research Center “Computer Science and Control” of the Russian Academy of Sciences

2. Federal Research Center “Computer Science and Control” of the Russian Academy of Sciences, 119333

Abstract

The S-model kinetic equation is used to study the rarefied gas flow from a high-pressure tank to a low-pressure one through a flat membrane with a finite number of pores. The kinetic equation is solved numerically using a second-order accurate implicit conservative method implemented in the in-house code Nesvetay. For transitional and continuum flow regimes, numerical solutions of the compressible Navier–Stokes equations are obtained. The gas flow rate through the system of pores and the forces acting on the membrane bars are investigated as functions of the Knudsen number (Kn) at a pressure ratio of 2 : 1 in the tanks. The features of the flow field near the membrane and away from it are described.

Publisher

The Russian Academy of Sciences

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