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arXiv 2602.12666math.APcs.NAmath.NAnlin.CDphysics.comp-phphysics.flu-dyn
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Navier-Stokes方程在几乎相同的初始条件下光滑解的非唯一性

Non-uniqueness of smooth solutions of the Navier-Stokes equations from almost the same initial conditions

Shanghai Jiaotong University(上海交通大学);School of Ocean and Civil Engineering, Shanghai Jiaotong University(上海交大海洋与土木工程学院);State Key Laboratory of Ocean Engineering, Shanghai, China(海洋工程国家重点实验室)

Shijun Liao, Shijie Qin

AI总结:

该研究通过清洁数值模拟展示Navier-Stokes方程在极小初始条件差异下存在多个光滑解,可能对方程的唯一性和存在性问题提供新见解。

摘要:

利用能够提供有限但足够长的时间区间内Navier-Stokes湍流空间时间轨迹的清洁数值模拟(CNS),我们提供了一些数值证据,表明Navier-Stokes方程在几乎相同的初始条件下允许不同的全球解,其初始条件的差异非常小,即甚至在$10^{-40}$量级。希望这些例子能为Navier-Stokes方程的唯一性和存在性提供一些启示,这与克莱因研究所的一个百万奖金问题相关。

英文摘要:

Using clean numerical simulation (CNS) which can give very accurate spatiotemporal trajectory of Navier-Stokes turbulence in a finite but long enough interval of time, we give some numerical evidences that the Navier-Stokes equations admit distinct global solutions from almost the same initial conditions whose difference is very small, i.e. even at the order $10^{-40}$ of magnitude. Hopefully these examples could provide some enlightenments for the uniqueness and existence of Navier-Stokes equations, which are related to one Millennium Prize Problem of Clay Institute.

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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