|Preprint-No.:||< 372 >||Published in:||August 2013||PDF-File:||IGPM372_k.pdf|
|Title:||A Comparison of Hybridized and Standard DG Methods for Target-Based hp-Adaptive Simulation of Compressible Flow|
|Authors:||Michael Woopen, Aravind Balan, Georg May, Jochen Schütz|
We present a comparison between hybridized and non-hybridized discontin- uous Galerkin methods in the context of target-based hp-adaptation. Using a discrete-adjoint approach, sensitivities with respect to output functionals are computed to drive the adaptation. From the error distribution given by the adjoint-based error estimator, h- or p-refinement is chosen based on the smoothness of the solution which can be quantified by properly-chosen smoothness indicators. Numerical results are shown for inviscid subsonic and transonic, and laminar viscous flow around the NACA0012 airfoil.
|Keywords:||discontinuous Galerkin methods, hybridization, hp-adaptation, adjoint-based error-estimation, compressible flow|
|Publication:||Journal of Scientific Computing |
August 2014, Volume 60, Issue 2, pp 438-456