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arXiv · 2208.04106

A Local Discontinuous Galerkin approximation for the $p$-Navier-Stokes system, Part I: Convergence analysis

Alex Kaltenbach·Michael Růžička
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Abstract

In the present paper, we propose a Local Discontinuous Galerkin (LDG) approximation for fully non-homogeneous systems of $p$-Navier-Stokes type. On the basis of the primal formulation, we prove well-posedness, stability (a priori estimates), and weak convergence of the method. To this end, we propose a new DG discretization of the convective term and develop an abstract non-conforming theory of pseudo-monotonicity, which is applied to our problem. We also use our approach to treat the $p$-Stokes problem.

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Alex Kaltenbach, Michael Růžička. 2022-08-08. A Local Discontinuous Galerkin approximation for the $p$-Navier-Stokes system, Part I: Convergence analysis. https://arxiv.org/abs/2208.04106

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