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Article Dans Une Revue Journal de Physique IV Proceedings Année : 2006

Multi-dimensional radiative effects in supercritical shock waves

Résumé

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 withR.
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Dates et versions

hal-03784847 , version 1 (23-09-2022)

Identifiants

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Sébastien Leygnac, Laurent Boireau, Claire Michaut, Thierry Lanz, Chantal Stehle, et al.. Multi-dimensional radiative effects in supercritical shock waves. Journal de Physique IV Proceedings, 2006, 133, pp.453-456. ⟨10.1051/jp4:2006133093⟩. ⟨hal-03784847⟩
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