Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...518..821r&link_type=abstract
The Astrophysical Journal, Volume 518, Issue 2, pp. 821-832.
Astronomy and Astrophysics
Astronomy
156
Hydrodynamics, Instabilities, Shock Waves, Ism: Supernova Remnants, Stars: Supernovae: General, Supernovae: Individual (Sn 1987A)
Scientific paper
The conditions for validity and the limitations of experiments intended to simulate astrophysical hydrodynamics are discussed, with application to some ongoing experiments. For systems adequately described by the Euler equations, similarity criteria required for properly scaled experiments are identified. The conditions for the applicability of the Euler equations are formulated, based on the analysis of localization, heat conduction, viscosity, and radiation. Other considerations involved in such a scaling, including its limitations at small spatial scales, are discussed. The results are applied to experiments aimed at simulating three-dimensional hydrodynamics during supernova explosions and hydrodynamic instabilities in young supernova remnants. In addition, hydrodynamic situations with significant radiative effects are discussed.
Drake Paul R.
Kane Jave
Liang Edison
Remington Bruce A.
Ryutov Dmitri D.
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