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Table 2.
Parameters of the 2D simulation.
| Boosting | L = 103 LMESA |
| Th. diffusivity | K = KMESA |
| EoS | Ideal gas + radiation pressure |
| Geometry | Polar coordinates |
| Radial domain | 0.007 R⋆ to 0.912 R⋆ |
| Resolution | 960(r) × 720(φ) |
| Boundary conditions | r-direction: solid-wall |
| φ-direction: periodic | |
| Time stepping | ESDIRK23 |
| Time step size |
 s |
| Time span | 700 h |
| Reconstruction | Linear, second order in space |
| Flux function | AUSM+-up |
Notes. R⋆ = 1.42 × 1011 cm denotes the total radius of the underlying 1D model, LMESA the stellar luminosity, and KMESA the stellar thermal diffusivity as given by MESA.
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