Parametric Description of the stationary Helical Vortex in a Hydrodynamic Vortex Chamber
S. I. Shtork1,2, E. S. Gesheva1, P. A. Kuibin1,2, V. L. Okulov2,3, S. V. Alekseenko1
1Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2Novosibirsk State University, Novosibirsk, 630090 Russia
3Technical University of Denmark, DK-2800 Lyngby, Denmark
Keywords: вихревая динамика, винтовой вихрь, вихревая камера, параметрическое описание, vortex dynamics, helical vortex, vortex chamber, parametric description
Abstract
A swirling flow in a tangential-type hydrodynamic chamber with stationary vortex structures is experimentally investigated. The main attention is paid to determining the geometric and kinematic parameters necessary for a correct description of helical vortices and their spatial structure, in particular, to testing the possibility of a theoretical description of the limiting case where the vortex becomes stationary, i.e., its rotation frequency (or precession frequency) becomes zero. It is shown that the theory of helical vortices ensures a sufficiently accurate prediction of conditions for the appearance of their stationary (immobile) states.
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