The Large Scale Instability in Rotating Fluid with Small Scale Force

• 作者: Anatoly Tur Michael Kopp Vladimir Yanovsky
• 来源期刊: 流体动力学(英文)
• 学科: 地球科学
• 关键词: Large SCALE VORTEX INSTABILITY CORIOLIS FORCE Multi-Scale Development Small SCALE Turbulence VORTEX KINKS
• 年，卷（期）: 2015,（2）
• 页码范围: 128-138
• 页数: 11页
• 分类号: P4

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.