The Large Scale Instability in Rotating Fluid with Small Scale Force  

作　　者：Michael Kopp Anatoly Tur Vladimir Yanovsky 

机构地区：[1]National Academy of Science Ukraine, Institute for Single Crystals, Kharkiv University, Kharkov, Ukraine [2]Institut de Recherche en Astrophysique et Planétologie, CNRS, Université de Toulouse [UPS], Toulouse, France

出　　处：《Open Journal of Fluid Dynamics》2015年第2期128-138,共11页流体动力学（英文）

摘　　要：In this paper, we find a new large scale instability in rotating flow forced turbulence. The turbulence is generated by a small scale external force at low Reynolds number. The theory is built on the rigorous asymptotic method of multi-scale development. The nonlinear equations for the instability are obtained at the third order of the perturbation theory. In this article, we explain the nonlinear stage of the instability and the generation vortex kinks.In this paper, we find a new large scale instability in rotating flow forced turbulence. The turbulence is generated by a small scale external force at low Reynolds number. The theory is built on the rigorous asymptotic method of multi-scale development. The nonlinear equations for the instability are obtained at the third order of the perturbation theory. In this article, we explain the nonlinear stage of the instability and the generation vortex kinks.

关 键 词：Large SCALE VORTEX INSTABILITY CORIOLIS FORCE Multi-Scale Development Small SCALE Turbulence VORTEX KINKS 

分 类 号：P4[天文地球—大气科学及气象学]