English

Pressure robust finite element discretizations of the nonlinear Stokes equations

Numerical Analysis 2025-01-28 v1 Numerical Analysis

Abstract

We present first-order nonconforming Crouzeix-Raviart discretizations for the nonlinear generalized Stokes equations with (r,ϵ)(r,\epsilon)-structure. Thereby the velocity-errors are independent of the pressure-error; i.e., the method is pressure robust. This improves suboptimal rates previously experienced for non pressure robust methods.

Keywords

Cite

@article{arxiv.2501.15954,
  title  = {Pressure robust finite element discretizations of the nonlinear Stokes equations},
  author = {Lars Diening and Adrian Hirn and Christian Kreuzer and Pietro Zanotti},
  journal= {arXiv preprint arXiv:2501.15954},
  year   = {2025}
}