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arXiv 2408.00977math.AP
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Rayleigh方程的奇异性

Singularities of Rayleigh equation

Dongfen Bian, Emmanuel Grenier

AI总结:

本文研究Rayleigh方程在任意阶退化临界点附近的局部解结构,并建立边界值与无穷远处行为之间的联系,为剪切流稳定性和涡量耗竭分析提供基础。

摘要:

Rayleigh方程是涡量形式下剪切流附近线性化Euler方程,是研究线性化Euler方程解长时间行为、Navier-Stokes方程剪切流线性稳定性,尤其是构造所谓Tollmien-Schlichting波的关键工具。它也是研究涡量耗竭的关键工具。本文在任意阶退化临界点附近局部描述Rayleigh方程的解,并将其在边界上的值与它们在无穷远处的行为联系起来。

英文摘要:

The Rayleigh equation, which is the linearized Euler equations near a shear flow in vorticity formulation, is a key ingredient in the study of the long time behavior of solutions of linearized Euler equations, in the study of the linear stability of shear flows for Navier-Stokes equations and in particular in the construction of the so called Tollmien-Schlichting waves. It is also a key ingredient in the study of vorticity depletion. In this article we locally describe the solutions of Rayleigh equation near critical points of any order of degeneracy, and link their values on the boundary with their behaviors at 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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