Local projection stabilization with discontinuous Galerkin method in time applied to convection dominated problems in time-dependent domains

Srivastava S.; Ganesan S. · BIT Numerical Mathematics (2020) · DOI: 10.1007/s10543-019-00783-2

Resumen

This paper presents the numerical analysis of a stabilized finite element scheme with discontinuous Galerkin (dG) discretization in time for the solution of a transient convection–diffusion–reaction equation in time-dependent domains. In particular, the local projection stabilization and the higher order dG time stepping scheme are used for convection dominated problems. Further, an arbitrary Lagrangian–Eulerian formulation is used to handle the time-dependent domain. The stability and error estimates are given for the proposed numerical scheme. The validation of the proposed local projection stabilization scheme with higher order dG time discretization is demonstrated with appropriate numerical examples.

Instituciones: Universidad Nacional de Ingeniería