Zobrazeno 1 - 10
of 17
pro vyhledávání: '"K. S. P'yankov"'
Publikováno v:
Fluid Dynamics. 55:840-857
The problems of designing the contours of two-dimensional and axisymmetric bodies of minimum wave drag and maximum-thrust nozzles, such that flow past them can contain internal shocks, are considered within the ideal (inviscid and non-heat-conducting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b387038b5465f22e5b1271277173785c
https://doi.org/10.1134/s0015462820060075
https://doi.org/10.1134/s0015462820060075
Publikováno v:
Fluid Dynamics. 53:296-304
The distinctive features of directmethods for contouring axisymmetric noses of bodies in a supersonic flow are discussed. The nose of a body of revolution in a supersonic flow, optimal with respect to the wave drag, includes a forward-looking flat fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936581dd5aa71b858909fa1d4ed454ff
https://doi.org/10.1134/s0015462818020052
https://doi.org/10.1134/s0015462818020052
Publikováno v:
Thermophysics and Aeromechanics. 23:297-300
We discuss the method of comparing pulse detonation engines (PDE) and engines with combustion in subsonic flow (ramjet) by means of their specific impulse used by the “Center of Pulse-Detonation Combustion” (CPDC). We demonstrate that the method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dfb0eb16725cfc085df21c379cbf990
https://doi.org/10.1134/s0869864316020177
https://doi.org/10.1134/s0869864316020177
Publikováno v:
Fluid Dynamics. 51:120-125
The results of the optimal contouring of asymmetric plane nozzles under some additional constraints are presented. One of the constraints is due to the asymmetric arrangement of the unknown nozzles relative to the combustion chamber exit. The investi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::632a9f81a73ed3db16979cd50402e0de
https://doi.org/10.1134/s0015462816010142
https://doi.org/10.1134/s0015462816010142
Autor:
M. N. Toporkov, K. S. P’yankov
Publikováno v:
Fluid Dynamics. 49:249-258
Flow in the rotors of wind turbines with a vertical axis of the Darrieus-Savonius type and their combinations is considered within the framework of the Navier-Stokes equations, in the two-dimensional formulation. A parametric investigation of the Dar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f0df8af11cdbd0480058e4c5247e613
https://doi.org/10.1134/s0015462814020136
https://doi.org/10.1134/s0015462814020136
Autor:
K. S. P’yankov, A. A. Kraiko
Publikováno v:
Fluid Dynamics. 49:120-130
The contouring of near-optimal three-dimensional nozzles with subsonic flow regions is considered with reference to certain examples. The contouring is carried out in accordance with the earlier-developed direct optimization technique using the appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f612f5fe760f55a03d30ff76f950e45
https://doi.org/10.1134/s0015462814010153
https://doi.org/10.1134/s0015462814010153
Publikováno v:
Computational Mathematics and Mathematical Physics. 52:1520-1525
A direct optimization method for a broad class of three-dimensional aerodynamic shapes based on the approximation of the desired geometry by Bernstein-Bezier surfaces is developed. The high efficiency of the method is demonstrated by applying it to t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59cf8c00a8ccdeefc046c629659be973
https://doi.org/10.1134/s0965542512110061
https://doi.org/10.1134/s0965542512110061
Publikováno v:
Russian Engineering Research. 32:641-645
The operation of a pulsating thermojet with a constant-volume multicavity combustion chamber is studied by means of a mathematical model. The engine’s thrust ensures supersonic flight.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1851a5942c0eb816df98ad6d7fea8afb
https://doi.org/10.3103/s1068798x1207009x
https://doi.org/10.3103/s1068798x1207009x
Autor:
K. S. P’yankov, O. M. Mel’nikova
Publikováno v:
Fluid Dynamics. 47:329-337
Sound-absorbing structures of resonance type are studied on the basis of integration of the unsteady Reynolds-averaged Navier-Stokes equations. The formation of the boundary layer over a sound-absorbing panel is compared with that on a flat plate in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ff24155bc488f9ba2c860b469ff6b4d
https://doi.org/10.1134/s0015462812030064
https://doi.org/10.1134/s0015462812030064
Publikováno v:
Fluid Dynamics. 47:223-238
Within the framework of the ideal, i.e., inviscid and non-heat conducting, gas model we consider the problem of designing the supersonic section of a two-dimensional or axisymmetric nozzle realizing a uniform supersonic flow limitingly similar with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ba3d14bd0bd72c3ecbf9d477025bfa
https://doi.org/10.1134/s001546281202010x
https://doi.org/10.1134/s001546281202010x