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Preprint-No.: <   336   >   Published in: February 2012   PDF-File: IGPM336_k_neu.pdf
Title:An Adjoint Consistency Analysis for a Class of Hybrid Mixed Methods
Authors:Jochen Schütz and Georg May
Abstract:
Hybrid methods represent a classic discretization paradigm for elliptic equations. More recently, hybrid methods have been formulated for convection-diffusion problems, in particular compressible fluid flow. In Schütz & May (2013), we have introduced a hybrid mixed method for the compressible Navier-Stokes equations as a combination of a hybridized DG scheme for the convective terms, and an H(div, Ω )- method for the diffusive part. Since hybrid methods are based on Galerkin’s principle, the adjoint of a given hybrid discretization may be used for PDE-constraint optimal control problems, or error estima- tion, provided that the discretization is adjoint consistent. In the present paper, we extend the adjoint consistency analysis, previously reported for many DG schemes to the more complex hybrid methods. We prove adjoint consistency for a class of Hybrid Mixed schemes, which includes the hybridized DG schemes proposed by Nguyen et al. (2009), as well as our recently proposed method (Schütz & May (2013)).
Keywords:hybrid mixed discretizations, hybridized discontinuous Galerkin discretizations, adjoint consistency, compressible Navier–Stokes equations
DOI: 10.1093/imanum/drt036
Publication:IMA journal of numerical analysis
IMAJNA 34(3), 1222-1239 (2013)