Nonlinear waves in an ultrarelativistic heat-conducting fluid II (Eckart formulation)

Autori

  • Sebastiano Giambò Università degli Studi di Messina
  • Veronica La Rosa Università degli Studi di Messina
  • Giuseppa Muscianisi Università degli Studi di Messina

DOI:

https://doi.org/10.1478/AAPP.901A2

Parole chiave:

Heat-conducting fluid, relativistic fluid, nonlinear waves

Abstract

In this paper a second-order theory for relativistic heat-conducting fluids is derived in the Eckart scheme, based on the assumption that the entropy 4-current should include quadratic terms in the heat flux. In the special case of ultrarelativistic fluids, the velocities of hydrodynamic and thermal weak discontinuity wave fronts are determined and, through the second-order compatibility conditions, the discontinuities associated to the waves and the transport equations for the amplitude of the discontinuities are found out. Finally, for heat wave, plane, cylindrical and spherical diverging waves are also investigated.

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Pubblicato

2012-06-08

Fascicolo

V. 90 N. 1 (2012)

Sezione

Articoli

Licenza

Creative Commons License
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