Zobrazeno 1 - 10
of 26
pro vyhledávání: '"D. G. Akhmetov"'
Autor:
V. F. Kop’ev, A. V. Plastinin, M. Yu. Zaitsev, M. S. Kotelnikova, V. V. Nikulin, D. G. Akhmetov, E. A. Chashnikov
Publikováno v:
Combustion, Explosion, and Shock Waves. 55:390-394
By initiating explosive charges in a cylindrical tube with one end face being plugged, vortex rings with diameters of the order of 1 m and initial velocity of motion greater than 100 m/s are obtained. Such rings emit a clearly heard acoustic signal,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::248ff5923b58e7718b9609e6097d305b
https://doi.org/10.1134/s0010508219040038
https://doi.org/10.1134/s0010508219040038
Autor:
T. D. Akhmetov, D. G. Akhmetov
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 57:879-887
The structure of a swirl flow in a vortex chamber is studied. Distributions of the azimuthal and axial components of velocity are obtained almost in the entire volume of the chamber. A pattern of streamlines of this flow is constructed, and the mecha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e414f2469b5d9ddb765764f993e37763
https://doi.org/10.1134/s0021894416050151
https://doi.org/10.1134/s0021894416050151
Autor:
D. G. Akhmetov
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 49:909-918
A semi-empirical model of vortex ring formation during exhaustion of a pulsed submerged jet from a circular orifice is presented. Formulas for determining the parameters of the vortex ring, depending on the conditions of formation of the latter, are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6ea7c64f14e4b2ecda252677d33bbe7
https://doi.org/10.1007/s10808-008-0113-4
https://doi.org/10.1007/s10808-008-0113-4
Autor:
D. G. Akhmetov
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 49:18-22
Experimental estimates of energy and energy dissipation of a vortex ring are presented. The energy losses during the motion of a vortex ring and a streamlined solid are compared.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a0b300de1ec69d69b51df5462563dec
https://doi.org/10.1007/s10808-008-0003-9
https://doi.org/10.1007/s10808-008-0003-9
Publikováno v:
Doklady Physics. 52:592-595
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91098bb5993647bada94329492e2a122
https://doi.org/10.1134/s1028335807110055
https://doi.org/10.1134/s1028335807110055
Publikováno v:
Fluid Dynamics. 41:938-948
The results of experimental, theoretical and numerical modeling of the evolution of homogeneous vorticity in a rectangular tank with a sloping bottom after a sharp deceleration in rotation are presented. In the linear approximation, an analytical sol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b4104aa0cdb3324f489573d1189e13a
https://doi.org/10.1007/s10697-006-0108-x
https://doi.org/10.1007/s10697-006-0108-x
Autor:
D. G. Akhmetov, V. V. Nikulin
Publikováno v:
Doklady Physics. 49:743-746
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2313bf21145b3ac0f60aaf0d18265222
https://doi.org/10.1134/1.1848630
https://doi.org/10.1134/1.1848630
Publikováno v:
Fluid Dynamics. 39:406-413
The results of an experimental investigation of the periodic pressure oscillations developing in a submerged swirling jet flowing out into an open space are presented. The main governing parameters of the process are determined and a general dependen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a2c3aee6ef3a2ab178df9f9dfd0a4a3
https://doi.org/10.1023/b:flui.0000038559.04814.4d
https://doi.org/10.1023/b:flui.0000038559.04814.4d
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 43:245-248
Experimental estimates are obtained for the main parameters of tornado‐like vortices that arise from excitation of forced axisymmetric inertial oscillations of large amplitude in a rigidly rotating fluid.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8651ac6ce62cd29844c699fa4b59786d
https://doi.org/10.1023/a:1014749525236
https://doi.org/10.1023/a:1014749525236
Autor:
D. G. Akhmetov
Publikováno v:
Journal of Applied Mechanics and Technical Physics. 42:794-805
This paper describes an experimental study of the properties of vortex rings with variation of parameters of the air jet expelled from a round nozzle by a special device. Characteristics of the vortex rings were determined by hot‐wire anemometer me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a898f7a750e366a00c0ebad7eb639dd1
https://doi.org/10.1023/a:1017992426213
https://doi.org/10.1023/a:1017992426213