caa a22 4500 47577616X CHVBK 20180406123631.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1007/BF02466860 doi (NATIONALLICENCE)springer-10.1007/BF02466860 Excitation of subharmonic oscillations in an axisymmetric flow with coherent structures in the regime of aeroacoustic resonance [Elektronische Daten] [S. Bardakhanov, O. Belai] 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. Kluwer Academic/Plenum Publishers, 2000 Bardakhanov S. aut Belai O. aut Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/4(2000-07-01), 628-636 0021-8944 41:4<628 2000 41 10808 https://doi.org/10.1007/BF02466860 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02466860 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bardakhanov S. aut NATIONALLICENCE 700 1- Belai O. aut NATIONALLICENCE 773 0- Journal of Applied Mechanics and Technical Physics Kluwer Academic Publishers-Plenum Publishers 41/4(2000-07-01), 628-636 0021-8944 41:4<628 2000 41 10808 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer