Year: 2015
Type: article
Abstract: In this paper, we find a new large scale instability which appears in obliquely rotating flow with the small scale turbulence, generated by external force with small Reynolds number. The external force has no helicity. The theory is based on the rigorous method of multi-scale asymptotic expansion. Nonlinear equations for instability are obtained in the third order of the perturbation theory. In this article, we explain in detail the nonlinear stage of the instability and we find the nonlinear periodic vortices and the vortex kinks of Beltrami type.
Source: Open Journal of Fluid Dynamics
Authors: Michael Kopp, Anatoly Tur, Vladimir Yanovsky
Institutions: National Academy of Sciences of Ukraine, State Scientific Institution “Institute for Single Crystals” of National Academy of Sciences of Ukraine, V. N. Karazin Kharkiv National University, Centre National de la Recherche Scientifique, Université Toulouse III - Paul Sabatier, Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2197286141