Journal Article

·2021 OPEN ACCESS

A stabilized discontinuous Galerkin method for the nonlinear advection-diffusion processes

Hüseyin Tunç YTU , Murat Sarı YTU

Proceedings of the Institute of Mathematics and Mechanics National Academy of Sciences of Azerbaijan

Abstract

This article presents a hybridization of a local discontinuous Galerkin method (LDG) with the -method to capture nonlinear behavior of the advection-diffusion processes. The predetermined fixed flux selection is extended to the generalized problem-dependent flux selection in the LDG algorithm. The derived technique has been shown to be unconditionally stable through the L 2 stability analysis. Two illustrative test problems are considered to demonstrate the efficiency of the currently produced technique for both advection and diffusion dominated processes.

Keywords

Advection Nonlinear system Diffusion Galerkin method Discontinuous Galerkin method Mechanics Applied mathematics Mathematics Environmental science Statistical physics Physics Thermodynamics Finite element method

Subject Areas

Advanced Numerical Methods in Computational Mathematics ·Computational Mechanics ·Physical Sciences
Computational Fluid Dynamics and Aerodynamics ·Computational Mechanics ·Physical Sciences
Advanced Mathematical Modeling in Engineering ·Computational Theory and Mathematics ·Physical Sciences

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