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 similar to 400 - 800 J) energies are presented. The modeling of these phenomena is mainly performed through numerical simulations (ID 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.

Experimental and numerical studies of radiative shocks / C., Michaut; L., Boireau; T., Vinci; S., Bouquet; M., Koenig; A., Benuzzi Mounaix; N., Ozaki; C., Clique; Atzeni, Stefano. - In: JOURNAL DE PHYSIQUE IV. - ISSN 1155-4339. - STAMPA. - 133:(2006), pp. 1013-1017. (Intervento presentato al convegno 4th International Conference on Inertial Fusion Sciences and Applications tenutosi a Biarritz, FRANCE nel SEP 04-09, 2005) [10.1051/jp4:2006133205].

Experimental and numerical studies of radiative shocks

ATZENI, Stefano
2006

Abstract

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 similar to 400 - 800 J) energies are presented. The modeling of these phenomena is mainly performed through numerical simulations (ID 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.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Experimental and numerical studies of radiative shocks / C., Michaut; L., Boireau; T., Vinci; S., Bouquet; M., Koenig; A., Benuzzi Mounaix; N., Ozaki; C., Clique; Atzeni, Stefano. - In: JOURNAL DE PHYSIQUE IV. - ISSN 1155-4339. - STAMPA. - 133:(2006), pp. 1013-1017. (Intervento presentato al convegno 4th International Conference on Inertial Fusion Sciences and Applications tenutosi a Biarritz, FRANCE nel SEP 04-09, 2005) [10.1051/jp4:2006133205].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/471259
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