Numerical study of unsteady rarefied diatomic gas flows in a plane microchannel

被引:1
|
作者
Larina, I. N. [1 ]
Rykov, V. A. [1 ]
机构
[1] Russian Acad Sci, Dorodnicyn Comp Ctr, Moscow 119333, Russia
基金
俄罗斯基础研究基金会;
关键词
rarefied gas (nitrogen); kinetic equation; diatomic gas; R-model; two-dimensional unsteady flows; finite-difference method;
D O I
10.1134/S0965542514080065
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The numerical solution of a kinetic equation for a diatomic gas (nitrogen) is used to study two-dimensional unsteady gas flows in a plane microchannel caused by discontinuous in the initial distributions of macroscopic gas parameters. The plane discontinuity fronts are perpendicular to the walls of the channel. The arising flows are model ones for gas flows in a shock tube and a microchannel. The reflection of an incident shock wave from a flat end face is studied. It is found that the gas piles up at the cold wall, which slows down the shock wave detachment. The numerical results are in qualitative agreement with experimental data.
引用
收藏
页码:1293 / 1304
页数:12
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