RT Journal Article ID 3ed988480ac859b5 A1 Kopiev, Victor F. A1 Zaytsev, M. Yu. A1 Inshakov, Sergei Ivanovich A1 Guryashkin, L. P. T1 VISUALIZATION OF DYNAMIC PROCESSES IN RING VORTICE CORES JF Visualization of Mechanical Processes: An International Online Journal JO VMP YR 2011 FD 2011-03-15 VO 1 IS 1 OP K1 vortex ring eigen-oscillations K1 aeroacoustic theory K1 vortex flow visualization K1 high-speed camera AB 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. PB Begell House LK https://www.dl.begellhouse.com/journals/08456987543b9011,1649355216ae5b94,3ed988480ac859b5.html