Experimental and numerical studies of radiative shocks

Autor: Serge Bouquet, C. Clique, Norimasa Ozaki, C. Michaut, Stefano Atzeni, Tommaso Vinci, M. Koenig, L. Boireau, Alessandra Benuzzi-Mounaix
Přispěvatelé: Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Théorique et Appliquée (DPTA), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Dipartemento di Energetica, Universitá di Roma La Sapienza and INFM
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, 2006, 133, pp.1013-1017. ⟨10.1051/jp4:2006133205⟩
ISSN: 1155-4339
1764-7177
Popis: International audience; This paper deals with radiative shocks from both theoretical and experimental viewpoints. First, experimental results obtained at Laboratoire d'Utilisation des Lasers Intenses (LULI) at high (E˜400-800 J) energies are presented. The modeling of these phenomena is mainly performed through numerical simulations (1D and 2D calculations). We compare simulations given by several radiative hydrodynamics codes and discuss numerical methods employed. The lateral radiative looses are examined. A major point for discussion is the physical data (EOS, ionization, opacities) included in these codes. It is shown that the radiative precursor length depends on the dimensionality of codes and on the opacities employed. Additional quantities (temperature of the shock, electron density in the precursor) are also calculated and good agreement is obtained with the experimental data.
Databáze: OpenAIRE
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