Statistics – Computation
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pazh...13..326v&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 13, April 1987, p. 326-332. In Russian. In Russian.
Statistics
Computation
2
Axisymmetric Flow, Comet Nuclei, Cosmic Dust, Gas Flow, Interstellar Gas, Two Phase Flow, Cometary Atmospheres, Computational Fluid Dynamics, Gas Pressure, Mach Number, Solar Radiation, Water Vapor
Scientific paper
The outflow of water vapor with a touch of the dust from a cometary nucleus is considered, allowing for solar radiation transfer as well as axisymmetric vaporization of material from the nucleus surface. The Mach number on the nucleus surface is determined. It is shown that the presence of dust in the cometary atmosphere leads to less definitely expressed axial symmetry of the flow in comparison with the case of a dust-free atmosphere. The axisymmetric motion of the dust will persist to large distances from the nucleus. The presence of the dust significantly influences the Mach number and dynamical gas pressure and little varies the temperature. Taking into account multiple scattering decreases the influence of the dust.
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