2D "Cepheid" model

  • 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.