ArXiv.org · 2007 · 12 citations · 0 references
Natural SciencesAstronomyPhysicsAstrophysicsComputational Fluid DynamicsStellar AstronomyAstrophysical Fluid DynamicsComputational AstrophysicsConvection DynamicsConvective MixingStellar EvolutionStellar StructureBoundary-induced MixingConvectionConvection In StarsConvective Boundary Layer MixingHydrodynamic SimulationsHydrodynamic Stellar ModelsStellar ConvectionStellar Mixing Processes
We review the current state of modeling convective mixing in AGB stars. The focus is on results obtained through multi-dimensional hydrodynamic simulations of AGB convection, both in the envelope and the unstable He-shell. Using two different codes and a wide range of resolutions and modeling assumptions we find that mixing across convective boundaries is significant for He-shell flash convection. We present a preliminary quantitative analysis of this convectively induced extra mixing, based on a sub-set of our simulations. Other non-standard mixing will be discussed briefly.