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Models of laser-plasma ablation. Part 3. Steady-state theory: deflagration flow

Published online by Cambridge University Press:  13 March 2009

G. J. Pert
G. J. Pert
Affiliation:
Department of Applied Physics, University of Hull, Hull HU6 7RX, U.K.
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Abstract

The theory of plasma ablation by laser irradiation from cylindrical and spherical solid targets is considered when thermal conduction is dominant and absorption is local at the critical density. Analytic solutions for both inhibited and uninhibited heat fluxes are developed, but only investigated in detail when flux limiting does not introduce a step discontinuity. In most cases it is found that only a restricted region of flow is steady, and must be terminated by a rarefaction wave. The transition from quasi-planar to strongly divergent flow is shown to depend on a characteristic parameter, which represents the ratio of the thermal conduction length to the target radius.

Type
Research Article
Information
Journal of Plasma Physics , Volume 39 , Issue 2 , April 1988 , pp. 241 - 276
Copyright
Copyright © Cambridge University Press 1988

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References

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