Three-Dimensional Simulations of Accretion Disks
作者： John F. Hawley , Steven A. Balbus
DOI: 10.1017/S0252921100042627
关键词: Physics 、 Classical mechanics 、 Magnetorotational instability 、 Astrophysics 、 Accretion disc
摘要: The transport of angular momentum is the central issue in accretion disk dynamics. We review recent three-dimensional simulations that investigate possible transport mechanisms. Purely hydrodynamic local instabilities and turbulence are ruled out; global spiral waves remain a possibility. MHD turbulence, arising from a local MHD instability, has been shown effective in transporting angular momentum at dynamically important rates. These results establish the basic picture of accretion disk transport.
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