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arXiv 2307.08166math.NAcs.NA
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适用于一般边界条件的二维不可压缩 Navier-Stokes 方程的 MEEVC 离散化

A MEEVC discretization for two-dimensional incompressible Navier-Stokes equations with general boundary conditions

Yi Zhang, Artur Palha, Marc Gerritsma, Qinghe Yao

AI总结:

提出一种可处理无滑移边界条件的二维不可压缩 Navier-Stokes 方程 MEEVC 混合有限元离散格式,证明其守恒性质并通过精确及非精确求积实验验证。

摘要:

本工作针对二维不可压缩 Navier-Stokes 方程,提出一种保持质量、能量、拟涡能和涡量的(MEEVC)混合有限元离散化,作为 [A. Palha 与 M. Gerritsma,J. Comput. Phys.,2017] 中原始 MEEVC 格式的替代方案。该方法能够纳入无滑移边界条件。文中证明了其守恒性质,并给出了采用精确与非精确求积的支持性数值实验。

英文摘要:

In this work, we introduce a mass, energy, enstrophy and vorticity conserving (MEEVC) mixed finite element discretization for two-dimensional incompressible Navier-Stokes equations as an alternative to the original MEEVC scheme proposed in [A. Palha and M. Gerritsma, J. Comput. Phys., 2017]. The present method can incorporate no-slip boundary conditions. Conservation properties are proven. Supportive numerical experiments with both exact and inexact quadrature are provided.

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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