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arXiv 1609.07085math.AP
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二维Stokes流接触线问题的局部适定性

Local well-posedness of the contact line problem in 2-D Stokes flow

Yunrui Zheng, Ian Tice

摘要:

本文研究粘性流体在二维开顶容器中接触线的演化。该域的上方由自由移动边界限定,否则由血管的固体壁限定。在重力的影响下,流体的动力学由不可压缩的斯托克斯方程控制,并且流体与空气之间的界面处于毛细力的作用下。在这里,我们开发了一个本地的适定性理论的框架内的非线性能量方法的问题。我们利用几种技术,包括:能量估计的几何公式的斯托克斯方程,Galerkin方法与时间相关的基础上的$ε$ -扰动线性斯托克斯问题在移动域,压缩映射原理的$ε$ -扰动非线性全接触线问题,和连续性参数均匀的能量估计。

英文摘要:

We consider the evolution of contact lines for viscous fluids in a two-dimensional open-top vessel. The domain is bounded above by a free moving boundary and otherwise by the solid wall of a vessel. The dynamics of the fluid are governed by the incompressible Stokes equations under the influence of gravity, and the interface between fluid and air is under the effect of capillary forces. Here we develop a local well-posedness theory of the problem in the framework of nonlinear energy methods. We utilize several techniques, including: energy estimates of a geometric formulation of the Stokes equations, a Galerkin method with a time-dependent basis for an $ε$--perturbed linear Stokes problem in moving domains, the contraction mapping principle for the $ε$--perturbed nonlinear full contact line problem, and a continuity argument for uniform energy estimates.

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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