On the role of viscosity in spherically symmetric transsonic flows

Details On the role of viscosity in spherically symmetric transsonic flows On the role of viscosity in spherically symmetric transsonic flows

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...342..982t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 342, July 15, 1989, p. 982-985. Research supported by MPI and CNR.

Statistics

Computation

7

Black Holes (Astronomy), Magnetohydrodynamic Flow, Stellar Mass Accretion, Transonic Flow, Viscosity, Chaos, Computational Astrophysics, Magnetohydrodynamic Turbulence, Topology

Scientific paper

The effects induced by viscosity on the equations governing spherical, transsonic flows are discussed. It is shown that viscosity changes the topology of solutions, replacing the critical point of the inviscid regime with a subcritical one. The quantitative relevance of turbulent dissipation is evaluated in the case of spherical accretion onto a black hole.

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