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Matteo Cantiello deleted file Ideally_the_properties_of.tex
about 11 years ago
Commit id: 5ca5af388871a07e9ed56b3f9cb07f50d0199979
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Ideally, the properties of the helium convection zone could be studied
through multi-dimensional hydrodynamic calculations. However,
the large thermal diffusivity poses a
formidable computational challenge since it makes the
problem numerically stiff: the diffusive timescale is much shorter than the dynamical one, which leads
to very short time steps if an explicit solver is used (unfortunately, most codes used for compressible
convection are explicit). Any simulation would have only limited value unless it includes a
sufficiently realistic treatment of the coupling between plasma and radiation.
