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Memorias de investigación
Artículos en revistas:
HERACLES : a three-dimensional radiation hydrodynamics code
Año:2007
Áreas de investigación
  • Astronomía,
  • Astrofísica
Datos
Descripción
We present a new three-dimensional radiation hydrodynamics code called HERACLES that uses an original moment method to solve the radiative transfer. The radiation transfer is modelled using a two-moment model and a closure relation that allows large angular anisotropies in the radiation field to be preserved and reproduced. The radiative equations thus obtained are solved by a second-order Godunov-type method and integrated implicitly by using iterative solvers. HERACLES has been parallelized with the MPI library and implemented in cartesian, cylindrical, and spherical coordinates. To characterize the accuracy of HERACLES and to compare it with other codes, we performed a series of tests including purely radiative tests and radiation-hydrodynamics ones. The results show that the physical model used in HERACLES for the transfer is fairly accurate in both the diffusion and transport limit, but also for semi-transparent regions. This makes HERACLES very well-suited to studying many astrophysical problems such as radiative shocks, molecular jets of young stars, fragmentation, and formation of dense cores in the interstellar medium, protoplanetary discs.
Internacional
Si
JCR del ISI
Si
Título de la revista
ASTRON ASTROPHYS
ISSN
0004-6361
Factor de impacto JCR
4,259
Información de impacto
Volumen
464
DOI
Número de revista
0
Desde la página
429
Hasta la página
435
Mes
MARZO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Philippe HUYNH (CEA Saclay)
  • Autor: Matthias Gonzalez . (UPM)
  • Autor: Edouard AUDIT (CEA Saclay)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear
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