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Precursor ionization effects on magnetohydrodynamic switch-on shock structure

Published online by Cambridge University Press:  13 March 2009

Martin I. Hoffert
Affiliation:
Riverside Research Institute, 632 West 125 Street, New York, New York 10027

Abstract

The influence of shock-induced precursor ionization on the steady-state structure of switch-on shock waves with non-equilibrium ionization and radiation is examined theoretically. A single-temperature monatomic gas is assumed, together with a Clarke–Ferrari model for photoionization of the upstream gas. It is found that the effect of the precursor depends in general on the ratio of a characteristic precursor length to a characteristic magnetic interaction length. For the slightly ionized case treated in some detail, this ratio is much greater than unity, indicating a precursor-independence for the magnetohydrodynamic shock structure.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1970

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