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ISSN 在线: 2152-209X

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DOI: 10.1615/VisMechProc.v1.i1.10

VISUALIZATION OF DYNAMIC PROCESSES IN RING VORTICE CORES

V. F. Kopiev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
M. Yu. Zaytsev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
Sergey Ivanovich Inshakov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
L. P. Guryashkin
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia

ABSTRACT

The present article is devoted to visualization of fast nonstationary phenomena in turbulent vortex ring cores. The videos presented in the article demonstrate the different types of eigen-oscillations of "free" vortex rings, as well as the dynamics of large-scale circular vortices in the subsonic jet. Moreover, visualization of the interaction of a vortex ring with rigid bodies (circular cylinder and flat screen), where eigen-oscillations are excited, is presented. These results enable the creation of new mathematical models of the phenomena where large-scale vortices play a significant role. In addition, these results are important for the validation of developed aeroacoustic theory.