Pressure-robustness has been widely studied since the conception of the notion and the introduction of the reconstruction approach for classical mixed methods in [5]. Using discretizations capable of yielding velocity solutions that are independent of the pressure approximation has been recognized as essential, and a large number of recent articles attest to this fact, e.g., [1,6]. Apart from the pressure-robustness aspect, incompressible flows exhibit anisotropic phenomena in the solutions which can be dealt with by using anisotropic mesh grading. The recent publications [3,4] deal with the combination of both challenges. We briefly revisit the results from [4] and provide an insightful new numerical example.
翻译:自概念的概念构想和对[5] 古典混合方法采用重建方法以来,对压力-气压-气压-气压-气压-进行了广泛研究。使用独立于压力近似法的能够产生速度解决办法的离散性办法已被公认为至关重要,许多最近的文章证明这一事实,例如[1,6]。除了压力-气压-气压方面外,不可压缩的流量在解决办法中表现出厌食性现象,这些解决办法可以通过厌食性中位分分法加以解决。最近的出版物[3,4]涉及这两种挑战的结合。我们简要回顾[4]的结果,并提供有见地的新数字例子。