scholarly journals Comparison of high-order continuous and hybridizable discontinuous Galerkin methods for incompressible fluid flow problems

2018 ◽  
Vol 153 ◽  
pp. 35-58 ◽  
Author(s):  
Mahendra Paipuri ◽  
Sonia Fernández-Méndez ◽  
Carlos Tiago
Keyword(s):  
Fluid Flow ◽  
Incompressible Fluid ◽  
Discontinuous Galerkin ◽  
Discontinuous Galerkin Methods ◽  
Galerkin Methods ◽  
Incompressible Fluid Flow ◽  
Flow Problems ◽  
Hybridizable Discontinuous Galerkin ◽  
Hybridizable Discontinuous Galerkin Methods ◽  
Order Continuous

scholarly journals Error Estimates on Hybridizable Discontinuous Galerkin Methods for Parabolic Equations with Nonlinear Coefficients

2017 ◽  
Vol 2017 ◽  
pp. 1-11
Author(s):  
Minam Moon ◽  
Hyung Kyu Jun ◽  
Tay Suh
Keyword(s):  
Approximate Solution ◽  
Discontinuous Galerkin ◽  
Computer Simulations ◽  
Parabolic Equations ◽  
Discontinuous Galerkin Methods ◽  
Numerical Technique ◽  
Galerkin Methods ◽  
Hybridizable Discontinuous Galerkin ◽  
Hybridizable Discontinuous Galerkin Methods ◽  
Error Estimations

HDG method has been widely used as an effective numerical technique to obtain physically relevant solutions for PDE. In a practical setting, PDE comes with nonlinear coefficients. Hence, it is inevitable to consider how to obtain an approximate solution for PDE with nonlinear coefficients. Research on using HDG method for PDE with nonlinear coefficients has been conducted along with results obtained from computer simulations. However, error analysis on HDG method for such settings has been limited. In this research, we give error estimations of the hybridizable discontinuous Galerkin (HDG) method for parabolic equations with nonlinear coefficients. We first review the classical HDG method and define notions that will be used throughout the paper. Then, we will give bounds for our estimates when nonlinear coefficients obey “Lipschitz” condition. We will then prove our main result that the errors for our estimations are bounded.

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