2D "Cepheid" model
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Vorticity.
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Rectangular computational domain:
(small) part of the stellar surface,
effects of surface curvature and variation of gravity ignored,
side length: 11x5.5 Gm, 5002 points
Parameters: logg=2,
Teff = 5300K,
solar composition
Lower boundary:
prescribed energy flux enters as radiation,
closed for matter
Side boundaries:
periodic
Top boundary:
closed for matter, transmitting for radiation.