Spherical variable-energy blast wave in self-gravitating gas

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Blasts, Gas Flow, Gravitational Effects, Shock Wave Propagation, Spherical Waves, Approximation, Boundary Value Problems, Flow Equations, Polytropic Processes

Scientific paper

Modified similarity method has been used to study the propagation of spherical-variable energy blast waves through a self-gravitating gas. For an energy input Eα = E0t4/3, where Eα is the energy released up to time t and E0 is a functional constant, the similarity solutions correct up to third approximation have been obtained. It is found that the effects of self-gravitational forces are of third order. An increase in the parameter A2 (characterising the gravitational field) increases the shock velocity.

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