arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2409.16166math.AP
收藏

具有非齐次Navier滑移边界条件的Euler方程

Euler equations with non-homogeneous Navier slip boundary condition

N. V. Chemetov, S. N. Antontsev

AI总结:

本文研究了二维有界域中允许流体穿边界的理想流体流动,由非齐次Navier滑移边界条件的Euler方程描述,并在具有$L_p$有界涡量的解类中通过Navier-Stokes方程的粘性消失极限证明了其可解性。

摘要:

我们考虑二维有界域中理想流体的流动,允许流体穿过该域的边界。该流动由具有非齐次Navier滑移边界条件的Euler方程描述。这些条件可写为$\mathbf{v}\cdot \mathsf{n}=a,$ $2D(\mathbf{v})\mathsf{n}\cdot \mathsf{s}+α\mathbf{v}\cdot {\mathsf{s}}=b,$其中张量$D(\mathbf{v})$是流体速度$\mathbf{v}$的应变率,$\mathsf{(n},\mathsf{s)}$是由边界的法向和切向向量构成的向量对。我们在具有$L_p$有界涡量的解类中建立了该问题的可解性,$p\in (2,\infty ]$。为证明可解性,我们在带有消失粘性的Navier-Stokes方程中实现了极限过渡。

英文摘要:

We consider the flow of an { ideal} fluid in a 2D-bounded domain, admitting flows through the boundary of this domain. The flow is described by Euler equations with \textit{non-homogeneous } Navier slip boundary conditions. These conditions can be written in the form $\mathbf{v}\cdot \mathsf{n}=a,$ $2D(\mathbf{v})\mathsf{n}\cdot \mathsf{s}+α\mathbf{v}% \cdot {\mathsf{s}}=b,$ where the tensor $D(\mathbf{v})$ is the rate-of-strain of the fluid's velocity $\mathbf{v}$ and\ $\mathsf{(n},% \mathsf{s)}$ is the pair formed by the normal and tangent vectors to the boundary. We establish the solvability of this problem in the class of solutions with $L_{p}-$bounded \ vorticity, $p\in (2,\infty ].$ To prove the solvability we realize the passage to the limit in Navier-Stokes equations with vanishing viscosity.

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。

↑