Computational framework for the regularized 20-moment equations for non-equilibrium gas flows

This paper presents a framework for solving the regularized 20‐moment equations consisting of a set of transport‐like governing equations, the required constitutive closure, re‐casting of the equations in second‐order partial derivative form and derivation of additional wall boundary conditions. Cou...

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Bibliographic Details
Published in:International journal for numerical methods in fluids 2008-03, Vol.56 (8), p.1433-1439
Main Authors: Mizzi, S., Gu, X. J., Emerson, D. R., Barber, R. W., Reese, J. M.
Format: Article
Language:English
Subjects:
Applied fluid mechanics
Computational methods in fluid dynamics
Exact sciences and technology
Fluid dynamics
Fluidics
Fundamental areas of phenomenology (including applications)
gas microfluidics
method of moments
non-equilibrium gas flows
Nonequilibrium gas dynamics
Physics
Reactive, radiative, or nonequilibrium flows
wall boundary conditions
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Summary:This paper presents a framework for solving the regularized 20‐moment equations consisting of a set of transport‐like governing equations, the required constitutive closure, re‐casting of the equations in second‐order partial derivative form and derivation of additional wall boundary conditions. Couette flow results reveal that good agreement occurs between the 20‐moment equations and direct simulation Monte Carlo data. Copyright © 2008 John Wiley & Sons, Ltd.
ISSN:0271-2091
1097-0363
DOI:10.1002/fld.1747