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arXiv 1808.01014math.APphysics.flu-dyn
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关于粘性极限为零时弱Euler解出现的注记

Remarks on the emergence of weak Euler solutions in the vanishing viscosity limit

Theodore D. Drivas, Huy Q. Nguyen

摘要:

本文证明了:如果在惯性范围内局部二阶结构函数指数在粘性上一致保持为正,则斯托克斯方程在任何有界区域上的Leray-Hopf弱解的任何时空$L^2$弱极限为$Ω\subset \mathbb{R}^d$,$d= 2,3$是Euler方程的弱解.这适用于无滑移和Navier摩擦条件与粘度依赖的滑移长度。结果允许出现的非唯一的,可能是耗散的,限制弱解的欧拉方程。

英文摘要:

We prove that if the local second-order structure function exponents in the inertial range remain positive uniformly in viscosity, then any spacetime $L^2$ weak limit of Leray--Hopf weak solutions of the Navier-Stokes equations on any bounded domain $Ω\subset \mathbb{R}^d$, $d= 2,3$ is a weak solution of the Euler equations. This holds for both no-slip and Navier-friction conditions with viscosity-dependent slip length. The result allows for the emergence of non-unique, possibly dissipative, limiting weak solutions of the Euler equations.

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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