Accretion Flows: Aspects of Gas Dynamic Modeling |
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| Authors: | Nikolai V Pogorelov Igor A Kryukov |
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| Institution: | (1) Institute for Problems in Mechanics, Russian Academy of Sciences, 101-1 Vernadskii Avenue, Moscow, 117526, Russia;(2) Institute for Problems in Mechanics, Russian Academy of Sciences, 101-1 Vernadskii Avenue, Moscow, 117526, Russia |
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| Abstract: | We present our view on the application of numerical models to accretion flows in astrophysics. Special attention is paid to
the problem of existence of steady-state solutions in time-dependent calculations and to origin of numerically induced instabilities.
The problem is considered of the supersonic wind accretion onto gravitating objects. We also present the results of the gas
dynamic simulation of accretion on a body imitating the shape of the star magnetosphere with holes in its polar regions. This
shape can occur as a result of the cusp disintegration owing to theRayleigh–Taylor instability in the equatorial region of
the magnetosphere.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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