# Shocks and changes of shape of second sound wave

Ruggeri, Tommaso (1992) Shocks and changes of shape of second sound wave. Accademia Peloritana dei Pericolanti, Classe di Scienze FF. MM. NN., LXX . pp. 243-256.

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## Abstract

A generalized non linear Maxwell-Cattaneo equation is used to study shock waves propagating in a rigid heat conductor at low temperature. Taking into account the experimental values for the second sound velocity, the existence of a critical temperature $\tilde {\theta}$ characteristic of the materials and separating two farmilies of shocks, the "hot" and the "cold" ones, is proved both numerically and analytically. Finally a possible explanation of the distortion of the initial second sound thermal pulse during its propagation is proposed.

Item Type: Article M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1992 > Supplemento 1M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1992 > Supplemento 1M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1992 > Supplemento 1M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere, Filosofia e belle Arti > 1992 > Supplemento 1 Dr A F 01 Oct 2012 10:51 23 Jan 2013 07:37 http://cab.unime.it/mus/id/eprint/797