Applicability of the Uniformly Expanding Universe Model to Laser Produced Plasmas
نویسندگان
چکیده
The similarity model commonly used in laser plasma calculations is shown to be identical with the uniformly expanding universe model analysed by Heckmann 1. A solution is found to the corresponding gasdynamic equations also for the case of nonvanishing entropy production. The solution is analytic for a class of heat input rates. Heat input is shown to affect the gas motion in an exponential manner. The limitations on the applicability of this model to laser plasma compression and expansion calculations are discussed.
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