Continuous interior penalty finite element method for the transient convection-diffusion-reaction equation

Erik Burman 1 Miguel Angel Fernández 2
2 REO - Numerical simulation of biological flows
LJLL - Laboratoire Jacques-Louis Lions, Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6
Abstract : We consider time-stepping methods for continuous interior penalty (CIP) stabilized finite element approximations of singularly perturbed parabolic problems or hyperbolic problems. We focus on methods for which the linear system obtained after discretization has the same matrix pattern as a standard Galerkin method. We prove that an iterative method using only the standard Galerkin matrix stencil is convergent. We also prove that the combination of the CIP stabilized finite element method with some known A-stable time discretizations leads to unconditionally stable and optimally convergent schemes. In particular, we show that the contribution from the gradient jumps leading to the extended stencil may be extrapolated from previous time steps, and hence handled explicitly without loss of stability and accuracy. With these variants, unconditional stability and optimal accuracy is obtained for first order schemes, whereas for the second order backward differencing scheme a CFL-like condition has to be respected. The CFL condition is related to the size of the stabilization parameter of the stabilized method but is independent of the diffusion coefficient.
Document type :
Reports
Complete list of metadatas

https://hal.inria.fr/inria-00281891
Contributor : Miguel Angel Fernández <>
Submitted on : Sunday, May 25, 2008 - 7:59:36 PM
Last modification on : Friday, January 4, 2019 - 5:33:15 PM
Long-term archiving on : Friday, September 28, 2012 - 2:56:31 PM

File

main.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : inria-00281891, version 1

Citation

Erik Burman, Miguel Angel Fernández. Continuous interior penalty finite element method for the transient convection-diffusion-reaction equation. [Research Report] RR-6543, 2008. ⟨inria-00281891v1⟩

Share

Metrics

Record views

11

Files downloads

331