On the role of initial and boundary conditions in numerical simulations of accretion flows

@article{Bu2013OnTR,
  title={On the role of initial and boundary conditions in numerical simulations of accretion flows},
  author={De-Fu Bu and Fenge Yuan and Maochun Wu and Jorge Cuadra},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={434},
  pages={1692-1701}
}
We study the effects of initial and boundary conditions, taking two-dimensional hydrodynamical numerical simulations of hot accretion flow as an example. The initial conditions considered include a rotating torus, a solution expanded from the one-dimensional global solution of hot accretion flows, injected gas with various angular momentum distributions, and the gas from a large-scale numerical simulation. Special attention is paid to the radial profiles of the mass accretion rate and density… 

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