| Numéro |
J. Phys. IV France
Volume 133, June 2006
|
|
|---|---|---|
| Page(s) | 453 - 456 | |
| DOI | https://doi.org/10.1051/jp4:2006133093 | |
| Publié en ligne | 16 juin 2006 | |
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 453-456
DOI: 10.1051/jp4:2006133093
Multi-dimensional radiative effects in supercritical shock waves
S. Leygnac1, 2, L. Boireau2, 3, C. Michaut2, T. Lanz2, 4, C. Stehlé2 and S. Bouquet31 School of Cosmic Physics, Dublin Institute for Advanced Studies, Ireland
2 Laboratoire de l'Univers et ses Théories, Observatoire de Paris, France
3 Département de Physique Théorique et Appliquée, CEA, Bruyères-Le-Châtel, France
4 Department of Astronomy, University of Maryland, USA
Abstract
We investigate the structure of the radiation field generated in high
Mach number shock waves (supercritical shock waves [1]) which have a finite extension R in the
direction perpendicular to the shock wave propagation. A simple analytical model allows us to
calculate how the radiation field decreases with R for a medium with
an homogeneous radiation emission in volume. We then perform a 3D radiative transfer calculation of the radiation field created by a stationary shock wave, and compare the predicted
radiative energy density and flux with 1D calculations. We find that
the variation of the radiation field with R follows the trend given by
the analytical calculation. Finally, we perform radiative-hydrodynamical calculations to
investigate further the variation of the radiation field with R and to
estimate the decrease of the velocity of the radiative precursor with R.
© EDP Sciences 2006