Radiation Hydrodynamics Scaling Laws in High Energy Density Physics and Laboratory Astrophysics

Emeric Falize (1, 2) , Serge Bouquet (1, 2) , Claire Michaut (1)

1 LUTH (UMR_8102) - Laboratoire Univers et Théories
2 DPTA - Département de Physique Théorique et Appliquée

In this paper, radiating fluids scaling laws are studied. We focus on optically thin and optically thick regimes which are relevant for both astrophysics and laboratory experiments. By using homothetic Lie groups, we obtain the scaling laws, the similarity properties and the number of free parameters which allow to rescale experiments in the two astrophyscial situations.

Mots clés: Scaling laws; Lie groups; radiation hydrodynamics; Laboratory Astrophysics; High Energy Density Physics

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]

Emeric Falize, Serge Bouquet, Claire Michaut. Radiation Hydrodynamics Scaling Laws in High Energy Density Physics and Laboratory Astrophysics. Journal of Physics: Conference Series, 2007, pp.4. ⟨hal-00280828⟩