Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Yu. A. Sadkov"'
Autor:
Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 20:33-39
The article presents computation results for a free jet emerging from a nozzle of radius R with Mach number M = 1 and nonrated value n = 3. The jet rotates at the nozzle outlet with constant angular velocity ω = 2 and corresponding circular velocity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d35578815310946cc037de25d541137
https://doi.org/10.1007/s10598-009-9017-2
https://doi.org/10.1007/s10598-009-9017-2
Autor:
Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 15:344-349
The oscillations of free supersonic jets are simulated using the axisymmetric Euler equation model. A third order accurate through difference scheme with artificial viscosity is used. Jet flows from a sonic nozzle with nozzle-to-ambient pressure rati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7482bbe6939be4e9e82d21d0d629e10f
https://doi.org/10.1023/b:comi.0000047344.94959.bb
https://doi.org/10.1023/b:comi.0000047344.94959.bb
Autor:
G. S. Roslyakov, Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 13:143-150
The interaction of ideal-gas flows with obstacles is analyzed numerically. The study examines the effect of rotation of the supersonic jet on its structure and on the parameters of the normal modes that arise in collision with obstacles. The origin o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::523bbe46cedcd825a55c780e281c9c46
https://doi.org/10.1023/a:1015262829452
https://doi.org/10.1023/a:1015262829452
Autor:
Yu. N. Sadkov, G. S. Roslyakov
Publikováno v:
Computational Mathematics and Modeling. 11:382-390
The article presents a numerical analysis of the modes that arise when underexpanded supersonic jets hit an obstacle. The calculations are carried out for different unrated values and different obstacle geometries. Comparison with results of physical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c90aa0d0bb7d8ae7668fe9ea8976e0b
https://doi.org/10.1007/bf02359302
https://doi.org/10.1007/bf02359302
Autor:
G. S. Roslyakov, Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 9:214-218
We carry out a numerical study of the self-excited oscillations that arise when a supersonic jet strikes a half-closed tube. We study the dependence of their amplitudes and other parameters on the boundary conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaaf37219f0c7fec8fe3549f42ffef78
https://doi.org/10.1007/bf02407140
https://doi.org/10.1007/bf02407140
Publikováno v:
Computational Mathematics and Modeling. 8:393-399
The flow of a supersonic underexpanded jet past a cavity is analyzed numerically. Through difference schemes approximate to first, second, and third order are used. The focus is on oscillation modes and their effect on back-flow.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ec0f5ef0aab01a086fb219cd5063e09
https://doi.org/10.1007/bf02404057
https://doi.org/10.1007/bf02404057
Autor:
Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 8:161-164
We consider the flow of supersonic homogeneous gas past a supersonic spherical source. This problem provides a gas-dynamic model of the interaction of interstellar wind with solar wind, and is thus also of independent interest. It is solved using an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d8561e6935a4cf7deb8876c14382326
https://doi.org/10.1007/bf02405167
https://doi.org/10.1007/bf02405167
Autor:
M. G. Lebedev, Yu. N. Sadkov
Publikováno v:
Computational Mathematics and Modeling. 7:148-159
The paper presents the results of numerical analysis of supersonic source flow of a gas past sharp-nosed cones. Axisymmetric and three-dimensional flows are considered. The flow geometry and the distributions of the gas-dynamic parameters in the shoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aab4446170fe8374d0b5f4d4799bd57
https://doi.org/10.1007/bf01131343
https://doi.org/10.1007/bf01131343
Autor:
M. G. Lebedev, Yu. N. Sadkov
Publikováno v:
Fluid Dynamics. 29:244-250
Axisymmetric and three-dimensional gas flows past sharp cones are studied both analytically and numerically for the case in which the supersonic oncoming stream is of source type. The effect of the governing parameters, such as the distance from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe10356aaaaa1d8e192936d530094c8b
https://doi.org/10.1007/bf02324315
https://doi.org/10.1007/bf02324315
Autor:
S. M. Stishov, Yu. A. Sadkov
Publikováno v:
Instruments and Experimental Techniques. 45:573-575
A design of a compact hydraulic press enabling a minimal shielding of a neutron beam by massive press elements is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e1cacfe625004f3dad8f2bed80c435
https://doi.org/10.1023/a:1019719410448
https://doi.org/10.1023/a:1019719410448