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Titolo:
Further development of integrated implosion code based on ILESTA-2D
Autore:
Nagatomo, H; Takabe, H; Ohnishi, N; Kato, S; Mima, K;
Indirizzi:
Osaka Univ, Inst Laser Engn, Suita, Osaka 565, Japan Osaka Univ Suita Osaka Japan 565 Inst Laser Engn, Suita, Osaka 565, Japan
Titolo Testata:
FUSION ENGINEERING AND DESIGN
, volume: 44, anno: 1999,
pagine: 187 - 190
SICI:
0920-3796(199902)44:<187:FDOIIC>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
FLUX-CORRECTED TRANSPORT; GENERATION;
Keywords:
Inertial Confinement Fusion (ICF); multi-dimensional hydrodynamic computational code; physics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Nagatomo, H Osaka Univ, Inst Laser Engn, 2-6 Yamada Oka, Suita, Osaka 565,Japan Osaka Univ 2-6 Yamada Oka Suita Osaka Japan 565 aka 565, Japan
Citazione:
H. Nagatomo et al., "Further development of integrated implosion code based on ILESTA-2D", FUSION ENG, 44, 1999, pp. 187-190

Abstract

In Inertial Confinement Fusion (ICF) studies, the development of a multi-dimensional hydrodynamic computational code with the sophisticated physics of high temperatures and densities is essential to promote the research. A two-dimensional integrated ICF simulation code, ILESTA-2D, which includes physical models of thermal relaxation, multi-group radiation transport, realistic equation of state, laser absorption, etc. has been developed by one ofthe authors. Recently, some modifications of the code have been carried out to improve the reliability of numerical simulations and increase the robustness against numerical algorithms. In this work, two parts of the numerical methods were mainly improved. One is a rezoning/remapping algorithm, in which the Arbitrary Lagrangian Eulerian method (ALE) was applied to keep accuracy in space and time without a tangled computational mesh. Also, the use of numerical algorithms in solving diffusion-type equations was improved with a nine-point approximation algorithm. These numerical algorithms and the computational results of Rayleigh-Taylor instability solved by the new ILESTA-2D are presented in this paper. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 04:05:41