Secondary shock in a homogeneous medium behind a blast wave
Department of Mathematics, University of Rome “La Sapienza”, 00186, Rome, Italy
* e-mail: Franco.Ferraioli@uniroma1.it
Accepted: 18 July 2013
Published online: 29 August 2013
Basing on the theory of asymptotic waves, we present a study on the formation of secondary shocks in a gaseous base medium affected by a strong point explosion. Using the leading equation which rules the evolution of a perturbing signal in a gas flow as shown in a previous paper (Eur. Phys. J. Plus 127, 129 (2012)), we discuss the main conditions which allow the formation of secondary shocks in the medium behind the blast front. For the two models considered, one following a power law density, the other with constant density, we give the times and the radial positions at which secondary shocks form by varying the adiabatic index.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2013