Transient Heat Transfer in Viscous Rarefied Gas between Concentric Cylinders. Effect of Curvature

被引:1
|
作者
Gospodinov, P. [1 ]
Roussinov, V. [1 ]
Dankov, D. [1 ]
机构
[1] Bulgarian Acad Sci, Inst Mech, Acad G Bonchev Str,Bl 4, BU-1113 Sofia, Bulgaria
关键词
D O I
10.1063/1.4934303
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The thermoacoustic waves arising in cylindrical or planar Couette rarefied gas flow between rotating cylinders is studied in the cases of suddenly cylinder (active) wall velocity direction turn on. An unlimited increase in the radius of the inner cylinder flow can be interpreted as Couette flow between the two flat plates. Based on the developed in previous publications Navier-Stockes-Fourier (NSF) model and Direct Simulation Monte Carlo (DSMC) method and their numerical solutions, are considered transient processes in the gas phase. Macroscopic flow characteristics (velocity, density, temperature) are received. The cylindrical flow cases for fixed velocity and temperature of the both walls are considered. The curvature effects over the wave's distribution and attenuation are studied numerically.
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页数:8
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