Zobrazeno 1 - 10
of 21
pro vyhledávání: '"A. V. Dorodnitsyn"'
Publikováno v:
Odessa Astronomical Publications, Vol 12, Iss 0, Pp 250-252 (2017)
We consider stationary out flowing stellar envelopes accelerated by a radiation flux pressure. A method is developed describing a spherically symmetric flow in radiational hydrodynamics in regions with arbitrary optical depth (τ ). The solution of t
Externí odkaz:
https://doaj.org/article/696412fe5930460dae773caf70a595ca
Publikováno v:
Computational Mathematics and Modeling. 31:308-319
A new version of the synthetic turbulent velocity generator is proposed for simulation of turbulent flows. The method is fully stochastic and generates a statistically anisotropic and nonhomogeneous random field, which provides the initial and bounda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74081a23152db8f05a7bb038ca634b68
https://doi.org/10.1007/s10598-020-09493-9
https://doi.org/10.1007/s10598-020-09493-9
Autor:
L. V. Dorodnitsyn
Publikováno v:
Computational Mathematics and Modeling. 27:472-488
The study focuses on the phenomenon of short-wave (sawtooth) oscillations manifested in some discrete approximations of hyperbolic systems of equations. A technique for the analysis of oscillations is proposed, decomposing the solution into a "smooth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74b158389b85cbe02bd8f7afe3a28c02
https://doi.org/10.1007/s10598-016-9337-y
https://doi.org/10.1007/s10598-016-9337-y
Autor:
L. V. Dorodnitsyn
Publikováno v:
Computational Mathematics and Modeling. 27:270-274
The article considers a three-point central-difference scheme for the transfer equation, with different kinds of special boundary conditions that reduce wave reflection from artificial boundaries. For the corresponding problems, we prove stability in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d6b7edf76e6c24ad43ed5c2d9d783e5
https://doi.org/10.1007/s10598-016-9320-7
https://doi.org/10.1007/s10598-016-9320-7
Autor:
L. V. Dorodnitsyn
Publikováno v:
Computational Mathematics and Modeling. 23:408-438
The article models external problems of gas dynamics on artificially bounded regions. Various descriptions of viscous gas are considered: Navier–Stokes equations and varieties of the quasi-gas-dynamic system. In the linear one-dimensional approxima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22c534ff174edd9c42e5a8a2727626c5
https://doi.org/10.1007/s10598-012-9147-9
https://doi.org/10.1007/s10598-012-9147-9
Autor:
L. V. Dorodnitsyn, S. V. Bogomolov
Publikováno v:
Mathematical Models and Computer Simulations. 3:457-467
The article reports some results of test calculations of one model from the hierarchical set of models of gas dynamics obtained (a brief scheme of the deduction is presented) from a system of stochastic differential equations describing gas at modera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0224f0917476003cf805e41f3f3747c6
https://doi.org/10.1134/s207004821104003x
https://doi.org/10.1134/s207004821104003x
Autor:
T. R. Kallman, A. V. Dorodnitsyn
Publikováno v:
International Journal of Modern Physics D. 27:1844006
Large scale magnetic field can be easily dragged from galactic scales toward AGN along with accreting gas. There, it can contribute to both the formation of AGN “torus” and help to remove angular momentum from the gas which fuels AGN accretion di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a39c6fa86938877c169604290cbb5cbf
https://doi.org/10.1142/s0218271818440066
https://doi.org/10.1142/s0218271818440066
Autor:
A. V. Dorodnitsyn
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 393:1433-1448
We consider resonant absorption in a spectral line in the outflowing plasma within several tens of Schwarzschild radii from a compact object. We take into account both Doppler and gravitational shifting effects and re-formulate the theory of P-Cygni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec066b7a8d51bbc9356102dd2dec92de
https://doi.org/10.1111/j.1365-2966.2008.14171.x
https://doi.org/10.1111/j.1365-2966.2008.14171.x
Autor:
L. V. Dorodnitsyn
Publikováno v:
Computational Mathematics and Modeling. 19:343-358
The properties of the spectra of discrete spatially one-dimensional problems of convection — diffusion type with constant coefficients and nonstandard boundary conditions are examined in the framework of stability of explicit algorithms for time-de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68fd635e4c370dea53a045cf62bcfbe3
https://doi.org/10.1007/s10598-008-9011-0
https://doi.org/10.1007/s10598-008-9011-0
Autor:
L. V. Dorodnitsyn
Publikováno v:
Computational Mathematics and Modeling. 18:282-309
The article models external flow problems on artificially bounded regions. In the linear approximation we examine the reflection of acoustic waves in a moving medium, incident at various angles on a fixed boundary. We consider the construction of var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::367733256a9190f64077a2d68f70b5a0
https://doi.org/10.1007/s10598-007-0026-8
https://doi.org/10.1007/s10598-007-0026-8