# Edge Stabilization for the Incompressible Navier-Stokes Equations: a Continuous Interior Penalty Finite Element Method

1 REO - Numerical simulation of biological flows
LJLL - Laboratoire Jacques-Louis Lions, Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6
Abstract : In this work we present an extension of the continuous interior penalty method of Douglas and Dupont [Lecture Notes in Phys., Vol. 58 (1976) 207] to the incompressible Navier-Stokes equations. The method consists of a stabilized Galerkin formulation using equal order interpolation for pressure and velocity. To counter instabilities due to the pressure/velocity coupling, or due to high local Reynolds number, we add a stabilization term giving $L^2$-control of the jump of the gradient over element edges (faces in 3D) to the standard Galerkin formulation. Boundary conditions are imposed in a weak sense using a consistent penalty formulation due to Nitsche. We prove energy type a priori error estimates independent of the local Reynolds number and give some numerical examples recovering the theoretical results.
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https://hal.inria.fr/inria-00070653
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Submitted on : Friday, May 19, 2006 - 9:07:41 PM
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• HAL Id : inria-00070653, version 1

### Citation

Erik Burman, Miguel Angel Fernández, Peter Hansbo. Edge Stabilization for the Incompressible Navier-Stokes Equations: a Continuous Interior Penalty Finite Element Method. [Research Report] RR-5349, INRIA. 2004, pp.34. ⟨inria-00070653⟩

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