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A. Dizi��re C. Michaut M. Koenig C. D. Gregory A. Ravasio Y. Sakawa Y. Kuramitsu T. Morita T. Ide H. Tanji H. Takabe P. Barroso J.-M. Boudenne 《Astrophysics and Space Science》2011,336(1):213-218
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. 相似文献