Chapter

General Aspects of Gas Flows

Raymond Brun

in Introduction to Reactive Gas Dynamics

Published in print February 2009 | ISBN: 9780199552689
Published online May 2009 | e-ISBN: 9780191720277 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199552689.003.0009
 General Aspects of Gas Flows

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This chapter reviews the Navier-Stokes equations for a gaseous system in vibrational and/or chemical non-equilibrium, and proposes various forms. The equations are written in a dimensionless form so that dimensionless numbers are defined, characterizing the relative influence of the physical processes involved in the equations. Typical particular flows are presented such as one and two-dimensional flows, isentropic, and dissipative flows. Problems related to gas-solid and gas-liquid interfaces, flow stability, entropy and global balances, dimensional analysis, and magnetohydrodynamics are also briefly discussed.

Keywords: Navier-Stokes equations; dimensionless numbers; global balance; entropy balance; interface; dimensional analysis; magnetohydrodynamics

Chapter.  10885 words.  Illustrated.

Subjects: Mathematical and Statistical Physics

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