A simple convection model for selfgravitating fluid dynamics
Time-dependent convective energy transfer in protostars and nonlinear stellar pulsations
G. Wuchterl and
Received 15 July 1998 / Accepted 2 October 1998
We describe a relatively simple time-dependent convection model that can be coupled to the equations of radiation hydrodynamics. We show that it behaves in a physically plausible way in protostellar collapse flows and is quantitatively correct for nonlinear RR-Lyrae pulsations and the Sun. Together with the equations of radiation hydrodynamics the model closely approximates the classical stellar structure equations with mixing length convection for a set of standard assumptions.
Key words: convection hydrodynamics stars: formation stars: oscillations
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© European Southern Observatory (ESO) 1998
Online publication: November 9, 1998