Non-reflective boundary conditions and the viscous instability in accretion discs.
A numberical investigation is carried out to analyse the effects of the outer boundary conditions on the viscous instability of accretion discs. A one-dimensional time dependent calculation of geometrically thin accretion discs is used. When the outer boundary is non-reflective, the oscillations decay on a viscous time-scale. An analytical treatment of numberically non-reflective boundary conditions is carried out for a polytropic flow and for a gas including radiation.
| Main Author: | Godon, Patrick. |
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| Format: | |
| Language: | English |
| Published: |
1996
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| Online Access: |
http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:176456 |