Adaptive Discontinuous Galerkin Methods for Interface Problems

Adaptive Discontinuous Galerkin Methods for Interface Problems PDF Author: Younis Abid Sabawi
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Adaptive Discontinuous Galerkin Methods for Interface Problems

Adaptive Discontinuous Galerkin Methods for Interface Problems PDF Author: Younis Abid Sabawi
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Discontinuous Galerkin Methods

Discontinuous Galerkin Methods PDF Author: Bernardo Cockburn
Publisher: Springer Science & Business Media
ISBN: 3642597211
Category : Mathematics
Languages : en
Pages : 468

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Book Description
A class of finite element methods, the Discontinuous Galerkin Methods (DGM), has been under rapid development recently and has found its use very quickly in such diverse applications as aeroacoustics, semi-conductor device simula tion, turbomachinery, turbulent flows, materials processing, MHD and plasma simulations, and image processing. While there has been a lot of interest from mathematicians, physicists and engineers in DGM, only scattered information is available and there has been no prior effort in organizing and publishing the existing volume of knowledge on this subject. In May 24-26, 1999 we organized in Newport (Rhode Island, USA), the first international symposium on DGM with equal emphasis on the theory, numerical implementation, and applications. Eighteen invited speakers, lead ers in the field, and thirty-two contributors presented various aspects and addressed open issues on DGM. In this volume we include forty-nine papers presented in the Symposium as well as a survey paper written by the organiz ers. All papers were peer-reviewed. A summary of these papers is included in the survey paper, which also provides a historical perspective of the evolution of DGM and its relation to other numerical methods. We hope this volume will become a major reference in this topic. It is intended for students and researchers who work in theory and application of numerical solution of convection dominated partial differential equations. The papers were written with the assumption that the reader has some knowledge of classical finite elements and finite volume methods.

Lectures on Elliptic Boundary Value Problems

Lectures on Elliptic Boundary Value Problems PDF Author: Shmuel Agmon
Publisher: American Mathematical Soc.
ISBN: 0821849107
Category : Mathematics
Languages : en
Pages : 225

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Book Description
This book, which is a new edition of a book originally published in 1965, presents an introduction to the theory of higher-order elliptic boundary value problems. The book contains a detailed study of basic problems of the theory, such as the problem of existence and regularity of solutions of higher-order elliptic boundary value problems. It also contains a study of spectral properties of operators associated with elliptic boundary value problems. Weyl's law on the asymptotic distribution of eigenvalues is studied in great generality.

hp-Version Discontinuous Galerkin Methods on Polygonal and Polyhedral Meshes

hp-Version Discontinuous Galerkin Methods on Polygonal and Polyhedral Meshes PDF Author: Andrea Cangiani
Publisher: Springer
ISBN: 3319676733
Category : Mathematics
Languages : en
Pages : 133

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Book Description
Over the last few decades discontinuous Galerkin finite element methods (DGFEMs) have been witnessed tremendous interest as a computational framework for the numerical solution of partial differential equations. Their success is due to their extreme versatility in the design of the underlying meshes and local basis functions, while retaining key features of both (classical) finite element and finite volume methods. Somewhat surprisingly, DGFEMs on general tessellations consisting of polygonal (in 2D) or polyhedral (in 3D) element shapes have received little attention within the literature, despite the potential computational advantages. This volume introduces the basic principles of hp-version (i.e., locally varying mesh-size and polynomial order) DGFEMs over meshes consisting of polygonal or polyhedral element shapes, presents their error analysis, and includes an extensive collection of numerical experiments. The extreme flexibility provided by the locally variable elemen t-shapes, element-sizes, and element-orders is shown to deliver substantial computational gains in several practical scenarios.

Adaptive Discontinuous Galerkin Methods for Non-linear Reactive Flows

Adaptive Discontinuous Galerkin Methods for Non-linear Reactive Flows PDF Author: Murat Uzunca
Publisher: Birkhäuser
ISBN: 3319301306
Category : Mathematics
Languages : en
Pages : 111

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Book Description
The focus of this monograph is the development of space-time adaptive methods to solve the convection/reaction dominated non-stationary semi-linear advection diffusion reaction (ADR) equations with internal/boundary layers in an accurate and efficient way. After introducing the ADR equations and discontinuous Galerkin discretization, robust residual-based a posteriori error estimators in space and time are derived. The elliptic reconstruction technique is then utilized to derive the a posteriori error bounds for the fully discrete system and to obtain optimal orders of convergence.As coupled surface and subsurface flow over large space and time scales is described by (ADR) equation the methods described in this book are of high importance in many areas of Geosciences including oil and gas recovery, groundwater contamination and sustainable use of groundwater resources, storing greenhouse gases or radioactive waste in the subsurface.

A High-Order Discontinuous Galerkin Method for Elliptic Interface Problems

A High-Order Discontinuous Galerkin Method for Elliptic Interface Problems PDF Author: 吳榮昭
Publisher:
ISBN:
Category :
Languages : en
Pages : 80

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Convergence of an Adaptive Discontinuous Galerkin Method for the Biharmonic Problem

Convergence of an Adaptive Discontinuous Galerkin Method for the Biharmonic Problem PDF Author: Alexander Dominicus
Publisher:
ISBN:
Category : Convergence
Languages : en
Pages :

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Adaptive High-order Methods In Computational Fluid Dynamics

Adaptive High-order Methods In Computational Fluid Dynamics PDF Author: Zhi Jian Wang
Publisher: World Scientific
ISBN: 9814464694
Category : Science
Languages : en
Pages : 471

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Book Description
This book consists of important contributions by world-renowned experts on adaptive high-order methods in computational fluid dynamics (CFD). It covers several widely used, and still intensively researched methods, including the discontinuous Galerkin, residual distribution, finite volume, differential quadrature, spectral volume, spectral difference, PNPM, and correction procedure via reconstruction methods. The main focus is applications in aerospace engineering, but the book should also be useful in many other engineering disciplines including mechanical, chemical and electrical engineering. Since many of these methods are still evolving, the book will be an excellent reference for researchers and graduate students to gain an understanding of the state of the art and remaining challenges in high-order CFD methods.

Nodal Discontinuous Galerkin Methods

Nodal Discontinuous Galerkin Methods PDF Author: Jan S. Hesthaven
Publisher: Springer Science & Business Media
ISBN: 0387720650
Category : Mathematics
Languages : en
Pages : 507

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Book Description
This book offers an introduction to the key ideas, basic analysis, and efficient implementation of discontinuous Galerkin finite element methods (DG-FEM) for the solution of partial differential equations. It covers all key theoretical results, including an overview of relevant results from approximation theory, convergence theory for numerical PDE’s, and orthogonal polynomials. Through embedded Matlab codes, coverage discusses and implements the algorithms for a number of classic systems of PDE’s: Maxwell’s equations, Euler equations, incompressible Navier-Stokes equations, and Poisson- and Helmholtz equations.

Discontinuous Galerkin Method

Discontinuous Galerkin Method PDF Author: Vít Dolejší
Publisher: Springer
ISBN: 3319192671
Category : Mathematics
Languages : en
Pages : 575

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Book Description
The subject of the book is the mathematical theory of the discontinuous Galerkin method (DGM), which is a relatively new technique for the numerical solution of partial differential equations. The book is concerned with the DGM developed for elliptic and parabolic equations and its applications to the numerical simulation of compressible flow. It deals with the theoretical as well as practical aspects of the DGM and treats the basic concepts and ideas of the DGM, as well as the latest significant findings and achievements in this area. The main benefit for readers and the book’s uniqueness lie in the fact that it is sufficiently detailed, extensive and mathematically precise, while at the same time providing a comprehensible guide through a wide spectrum of discontinuous Galerkin techniques and a survey of the latest efficient, accurate and robust discontinuous Galerkin schemes for the solution of compressible flow.