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M.L. Jacobs, D.H. Porter, B.V. Merkey, P.R. Woodward (University of Minnesota)
High resolution three dimensional red giant models are presented using the newest version of PPMstar. Recent modifications include an improved photosphere and the addition of a dynamic treatment of gravity. These additions allow us to trace large-scale high Mach number shockwaves propagating through the photosphere and merging outside. With the new gravity treatment we re-evaluate the large-scale convective motions and radial pulsations in the presence of a dynamically adjusting potential. We also present new visualizations that demonstrate fundamental correlations of a variety of physical quantities (kinetic energy flux, Relative temperature fluctuations, vorticity, enthalphy flux, radial velocity, etc.) in our models.
All simulations were run on the Origin 2000 cluster of machines at the National Center for Supercomputing Applications (NCSA).
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The author(s) of this abstract have provided an email address for comments about the abstract: mjacobs@astro.umn.edu