Investigation of slow monatomic gas flows past a circular cylinder

Slow low-Knudsen-number monatomic-gas flow past a circular cylinder is numerically investigated on the basis of a model kinetic equation. The gas flow is described by a new kinetic equation, from which the continuum equations for slow nonisothermal gas flows containing temperature stresses follow ri...

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Bibliographic Details
Published in:Fluid dynamics 2008-12, Vol.43 (6), p.968-976
Main Authors: Larina, I. N., Rykov, V. A.
Format: Article
Language:English
Subjects:
Circular cylinders
Classical and Continuum Physics
Classical Mechanics
Computational fluid dynamics
Continuums
Cylinders
Engineering Fluid Dynamics
Fluid- and Aerodynamics
Gas flow
Kinetic equations
Mathematical analysis
Mathematical models
Physics
Physics and Astronomy
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Summary:Slow low-Knudsen-number monatomic-gas flow past a circular cylinder is numerically investigated on the basis of a model kinetic equation. The gas flow is described by a new kinetic equation, from which the continuum equations for slow nonisothermal gas flows containing temperature stresses follow rigorously. It is shown that a closed convective-flow region arises near a nonuniformly heated cylinder in a slow gas flow if the flow impinges on the hot side of its surface. Using a new model of the Boltzmann equation makes it possible to study gas flows both in continuum and rarefied flow regimes.
ISSN:0015-4628
1573-8507
DOI:10.1134/S0015462808060185