Title
hp-adaptive discontinuous Galerkin methods for non-stationary convection-diffusion problems.
Abstract
An a posteriori error estimator for the error in the (L2(H1)+L∞(L2))-type norm for an interior penalty discontinuous Galerkin (dG) spatial discretisation and backward Euler temporal discretisation of linear non-stationary convection–diffusion initial/boundary value problems is derived, allowing for anisotropic elements. The proposed error estimator is used to drive an hp-space–time adaptive algorithm wherein directional mesh refinement is employed to give rise to highly anisotropic elements able to accurately capture layers. The performance of the hp-space–time adaptive algorithm is assessed via a number of standard test problems characterised by sharp and/or moving layers.
Year
DOI
Venue
2019
10.1016/j.camwa.2019.04.002
Computers & Mathematics with Applications
Keywords
Field
DocType
Discontinuous Galerkin,Unsteady convection–diffusion,A posteriori error estimation,Adaptive finite element methods,Anisotropic meshes
Discontinuous Galerkin method,Discretization,Boundary value problem,Mathematical optimization,Mathematical analysis,A priori and a posteriori,Rate of convergence,Adaptive algorithm,Backward Euler method,Mathematics,Estimator
Journal
Volume
Issue
ISSN
78
9
0898-1221
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Andrea Cangiani1457.87
Emmanuil H. Georgoulis28914.17
Stefano Giani3369.55
Stephen Metcalfe400.34