Radiation hydrodynamics in astrophysics

Details Radiation hydrodynamics in astrophysics Radiation hydrodynamics in astrophysics

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987rmxaa..14..573i&link_type=abstract

(IAU, Reunion Regional Latinoamericana de Astronomia, 5th, Merida, Mexico, Oct. 6-10, 1986) Revista Mexicana de Astronomia y Ast

Statistics

Computation

Computational Astrophysics, Free Flow, Hydrodynamic Equations, Radiative Transfer, Constitutive Equations, Equations Of State, Radiation Pressure, Radiative Heat Transfer

Scientific paper

Starting from general covariant forms, the inertial and comoving-frame equations of radiation hydrodynamics are analyzed with a view to the relative importance of their different terms in two limit regimes of interest in astrophysics: the free-streaming regime, during radiative and fluid flow time-scales, and the static and dynamic diffusion regimes. Three dimensionless parameters are used: the ratio between material and radiation field energy density, the Boltzmann number, and the radiative Reynolds number. Both linear and nonlinear general solutions are discussed.

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