Numerical simulation of nonaxisymmetric adiabatic accretion flow

Journal Article · Thu Dec 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166973· OSTI ID:6401221

Fryxell, B A; Taam, R E

The hydrodynamics of gas flow past a finite-sized gravitating central object is studied in the adiabatic approximation in two spatial dimensions. The flow morphology is shown to depend on the ratio (epsilon) of the axisymmetric accretion radius to the length scale of the density variation. For small to intermediate epsilon values the flows are highly time dependent, and for large epsilon values a quasi-steady state is obtained. 36 references.

• Research Organization: Chicago Univ., IL (USA); Northwestern Univ., Evanston, IL (USA)
• OSTI ID: 6401221
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 335; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
ANGULAR MOMENTUM
BINARY STARS
COMPUTERIZED SIMULATION
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
FLUID FLOW
FLUID MECHANICS
GAS FLOW
HYDRODYNAMICS
MASS
MECHANICS
MORPHOLOGY
NEUTRON STARS
SIMULATION
STAR ACCRETION
STAR EVOLUTION
STARS
STEADY-STATE CONDITIONS
TIME DEPENDENCE