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arXiv 0901.1199math.AP
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三维旋转流体层的整体存在性和长时间渐近性

Global Existence and Long-Time Asymptotics for Rotating Fluids in a 3D Layer

Thierry Gallay, Violaine Roussier-Michon

摘要:

Navier-Stokes-Coriolis系统是旋转流体的简单模型,它允许研究Coriolis力对三维流动动力学的影响。本文考虑了由两个水平面限定的三维无限层中的NSC系统,在垂直方向上具有周期边界条件。如果角速度参数是足够大的,取决于初始数据,我们证明了存在的整体,无限能量的非零循环数的解决方案。我们还表明,这些解决方案收敛到二维的Lamb-Oseen涡随着时间的推移到无穷大。

英文摘要:

The Navier-Stokes-Coriolis system is a simple model for rotating fluids, which allows to study the influence of the Coriolis force on the dynamics of three-dimensional flows. In this paper, we consider the NSC system in an infinite three-dimensional layer delimited by two horizontal planes, with periodic boundary conditions in the vertical direction. If the angular velocity parameter is sufficiently large, depending on the initial data, we prove the existence of global, infinite-energy solutions with nonzero circulation number. We also show that these solutions converge toward two-dimensional Lamb-Oseen vortices as time goes to infinity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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