Zobrazeno 1 - 10
of 137
pro vyhledávání: '"M. Yu. Zaitsev"'
Publikováno v:
Acoustical Physics. 66:303-312
The noise of the main rotor of a helicopter in hover and horizontal flight modes is numerically simulated. To calculate the acoustic characteristics caused by the nonstationary load on the blades, a software package is used, validated with experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f1b383e14cd9d86ea5ba00e9f4974a2
https://doi.org/10.1134/s1063771020030082
https://doi.org/10.1134/s1063771020030082
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:
Nikolay Ostrikov, Sergey Chernyshev, Ivan Belyaev, M. Yu. Zaitsev, V. F. Kopiev, V. A. Kopiev, O. P. Bychkov, Georgy A. Faranosov
Publikováno v:
Fluid Dynamics. 53:347-360
The possibility of controlling instability waves in the mixing layer of a subsonic unexcited jet is studied. These waves can be noise sources in both free jets and jets as parts of configurations. In the study the method of experimental diagnostics o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c890987a54ec850e30258cec657eb4b
https://doi.org/10.1134/s0015462818030047
https://doi.org/10.1134/s0015462818030047
Autor:
S. L. Denisov, S. Yu. Makashov, V. V. Gromov, M. Yu. Zaitsev, Nikolai N. Ostrikov, V. A. Anikin, V. F. Kop’ev
Publikováno v:
Acoustical Physics. 62:741-746
The paper presents the results of experimental studies on developing a technique to determine the acoustic properties of models of main helicopter rotors on an open test bench. The method of maximum length sequences is used to choose the optimum arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2113e3878c72a0bf6f15876e34a514a2
https://doi.org/10.1134/s1063771016050043
https://doi.org/10.1134/s1063771016050043
Publikováno v:
Acoustical Physics. 62:429-435
The operation of a unipolar pulse-periodic corona discharge is considered. A new method is proposed for analyzing its properties by considering the structure of discharge-emitted sound. Decomposition of the acoustic field into azimuthal components ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bb20fd00e1b0d27d060159be021e8e1
https://doi.org/10.1134/s1063771016040084
https://doi.org/10.1134/s1063771016040084
Publikováno v:
AIP Conference Proceedings.
The paper presents the experimental results and the analysis of the wingtip vortex control by magnetohydrodynamic (MHD) plasma actuator [1]. The actuator is installed on the surface of the asymmetric wing of a finite span. In a single cycle of actuat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98ce5c42a37bf3637ee4052406b190be
https://doi.org/10.1063/1.4963975
https://doi.org/10.1063/1.4963975
Publikováno v:
Acoustical Physics
A new concept of reducing the noise of a slat by applying a chevron form to the bottom edge is experimentally verified. The results of parametric studies are presented, which have been carried out on a small-scale model of a part of the wing (a scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7562b9ef8e17c43344b9550ae1227152
https://doi.org/10.1134/s1063771012040161
https://doi.org/10.1134/s1063771012040161
Autor:
Ivan Belyaev, I. A. Moralev, Victor Kopiev, S. M. Godin, Anatoly Klimov, Valentin Bityurin, Nikolay Ostrikov, V. A. Kopiev, M. Yu. Zaitsev
Publikováno v:
Acoustical Physics
We study experimentally how plasma actuators operating on the basis of surface barrier high-frequency discharge affect jet noise characteristics. The results of investigations of air jets (100–200 m/s) have demonstrated that the studied plasma actu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33c728c3df70991417d87daf79c80cb8
https://doi.org/10.1134/s1063771012040100
https://doi.org/10.1134/s1063771012040100
Publikováno v:
Fluid Dynamics. 44:587-595
Existing ideas of instability waves as the main dynamic noise sources in supersonic jets are tested for conformity with the data of acoustic measurements of this noise. Methodologically, the problem consists in the verification of the main principles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0c208a0697e34c501adf2a6b02992b4
https://doi.org/10.1134/s0015462809040127
https://doi.org/10.1134/s0015462809040127
Autor:
M. Yu. Zaitsev, Victor Kopiev
Publikováno v:
Fluid Dynamics. 43:86-96
The problem of aerodynamic sound generation by a transverse turbulent flow past a rigid cylinder is considered. An anomalous displacement of the equivalent dipole source to a region far downstream of the cylinder is found using the method of azimutha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f456e4dfc1346cda370ec664729d7eb6
https://doi.org/10.1134/s0015462808010109
https://doi.org/10.1134/s0015462808010109