Ваш браузер устарел и не обеспечивает полноценную и безопасную работу с сайтом. Пожалуйста обновите браузер, чтобы улучшить взаимодействие с сайтом.

Computer modeling of non-stationary gas quasi-Keplerian disk Astrophysical Disks

Наименование публикации Computer modeling of non-stationary gas quasi-Keplerian disk Astrophysical Disks
Тип публикации Статья
Библиографическое описание Khoperskov, A. V. Computer Modeling of Non-Stationary Gas Quasi-Keplerian Disk / Alexander V. Khoperskov, Sergej S. Khrapov // Astrophysical disks. Collective and Stochastic Phenomena // editors : Alexei M. Fridman, Mikhail Ya. Marov, Ilya G. Kovalenko. — 2006. — Vol. 337, Part II. — Pp. 217-229.
Аннотация We have considered convective instability in a plane of a disk. In this case nonaxisymmetric perturbations are unstable, and the reason of a convection is connected with a radial non-homogeneity of thermodynamic parameters in quasi-Keplerian disk. On the basis of the linear analysis of stability in WKBapproximation the borders of stability are received. The hydrodynamical model of a non-stationary gas disk in the gravitational field of dot mass is constructed. We have studied nonlinear dynamics of convective unstable perturbations because of radial non-homogeneous entropy, neglecting effects of cooling and viscosity. The opportunity of formation of spiral-cellular structure of convective perturbations with shock waves is shown here.
Ключевые cлова hydrodynamics, accretion disk, instability, convection
Год публикации 2006
Автор(ы)
Хоперсков Александр Валентинович
Храпов Сергей Сергеевич
Электронная копия публикации Загрузить