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Bibliographic Details
Main Authors: Munch, Peter, Fehling, Marc, Kronbichler, Martin, Margenberg, Nils, Saavedra, Laura Prieto
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.29621
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Table of Contents:
  • In this article, we solve the Stokes and Navier-Stokes equations with the deal$.$II finite-element library. In particular, we use its multigrid, adaptive-mesh, and matrix-free infrastructures to design efficient linear and nonlinear iterative solvers, respectively. We solve the stationary Stokes equations on hp-adaptive meshes with a hp-multigrid approach, the transient Stokes equations with space-time finite elements and space-time multigrid, and, finally, the stabilized incompressible Navier-Stokes equations on locally refined meshes with a monolithic multigrid solver. The selected examples underline the flexibility and modularity of the multigrid infrastructure of deal$.$II.