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Article Dans Une Revue Astrophysics and Space Science Année : 2011

Highly radiative shock experiments driven by GEKKO XII

Résumé

In this paper, recent results obtained on highly radiative shocks generated in a xenon filled gas cell using the GEKKO XII laser facility are presented. Data show extremely high shock velocity (>=150 km/s) never achieved before in gas. Preliminary analyses based on theoretical dimensionless numbers and numerical simulations suggest that these radiative shocks reach a new radiative regime where the radiative pressure plays a role in the dynamics and structure of the shock. A major effect observed is a strong anisotropic emission in the downstream gas. This unexpected feature is discussed and compared to available 2D radiation hydrodynamic simulations.
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hal-03785743 , version 1 (23-09-2022)

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A. Dizière, Claire Michaut, M. Koenig, C. D. Gregory, Alessandra Ravasio, et al.. Highly radiative shock experiments driven by GEKKO XII. Astrophysics and Space Science, 2011, 336, pp.213-218. ⟨10.1007/s10509-011-0653-6⟩. ⟨hal-03785743⟩
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