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arXiv 2408.13245math.AP
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关于在通道中具有动态滑移边界条件的类2D Navier-Stokes系统的吸引子

On the attractor for 2D Navier-Stokes-like system with the dynamic slip boundary condition in a channel

Michael Zelina

AI总结:

本文研究了在2D无限通道中满足动态滑移边界条件的不可压缩流体,通过有界子区域穷竭证明弱解为强解,并构造了全局吸引子,求出了其分形维数的显式上界,结果与Dirichlet边界条件下的估计一致。

摘要:

我们考虑一个2D无限通道区域,其中的不可压缩流体在(部分)边界上满足所谓的动态滑移边界条件。通过引入整个通道的一系列有界子区域构成的穷竭,我们证明了唯一的弱解是强解。然后我们构造了全局吸引子,并求出了其关于物理参数的分形维数的显式上界。该结果与Dirichlet边界条件情况下的类似估计相一致。

英文摘要:

We consider a 2D infinite channel domain with an incompressible fluid satisfying the so-called dynamic slip boundary condition on the (part of the) boundary. Introducing an exhaustion by a sequence of bounded sub-domains of the whole channel we show that the unique weak solution is strong. We then construct the global attractor and find an explicit upper bound of its fractal dimension with regard to the physical parameters. This result is compatible with the analogous estimate in the case of the Dirichlet boundary condition.

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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