Similarity solutions describing the flow of a perfect gas behind strong shock waves are investigated for the three cases of plane, cylindrical, and spherical symmetry. The flow is cansed by an expanding piston, and the total energy increases as a power of the time. The ratio of kinetic to internal heat energy of the gas is computed and it is found that in the case of a piston which is expanding at a uniform rate there is equipartition of energy.
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M. H. Rogers (1958) studied this question.