|
Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2000, Volume 41, Issue 4, Pages 59–68
(Mi pmtf2954)
|
|
|
|
This article is cited in 3 scientific papers (total in 3 papers)
Excitation of subharmonic oscillations in an axisymmetric flow with coherent structures in the regime of aeroacoustic resonance
S. P. Bardakhanov, O. V. Belai Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090
Abstract:
Conditions of origination of aeroacoustic resonance phenomena near an axisymmetric body in the form of a thick-walled tube in an air flow in a rectangular channel are studied experimentally. Dependences of the eigenfrequency of acoustic oscillations on the model length are determined. By studying the mechanism of origination of oscillations in the wake flow, it is shown that the process of generation of annular coherent structures in resonant regimes is characterized by evolution of nonlinearities including a subharmonic packet. Possible methods of flow control are discussed.
Received: 12.01.1999 Accepted: 17.06.1999
Citation:
S. P. Bardakhanov, O. V. Belai, “Excitation of subharmonic oscillations in an axisymmetric flow with coherent structures in the regime of aeroacoustic resonance”, Prikl. Mekh. Tekh. Fiz., 41:4 (2000), 59–68; J. Appl. Mech. Tech. Phys., 41:4 (2000), 628–636
Linking options:
https://www.mathnet.ru/eng/pmtf2954 https://www.mathnet.ru/eng/pmtf/v41/i4/p59
|
Statistics & downloads: |
Abstract page: | 24 | Full-text PDF : | 13 |
|