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A. V. Lazarev, N. N. Zastenker, D. N. Trubnikov
Analytical
estimations of parameters of monoatomic gas free jet expanding into vacuum
Abstract
The
Boltzmann equation for spherical free jet expansions of monoatomic gases atoms
of which interact with the Lennard—Jones potential was solved by the method of
moments using the ellipsoidal distribution function. The method of matching of
asymptotic expansions was applied for an analysis of the moment equations
system. Composite expansions allowing sufficiently exact estimations of jet
parameters over the entire flow field were constructed. In the case of an argon
jet, the comparison with the experimental data was carried out.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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