Time Discretization of Parabolic Problems by the Hp-version of the Discontinuous Galerkin Finite Element Method

Time Discretization of Parabolic Problems by the Hp-version of the Discontinuous Galerkin Finite Element Method PDF Author: Dominik Schötzau
Publisher:
ISBN:
Category :
Languages : en
Pages : 40

Get Book Here

Book Description

Time Discretization of Parabolic Problems by the Hp-version of the Discontinuous Galerkin Finite Element Method

Time Discretization of Parabolic Problems by the Hp-version of the Discontinuous Galerkin Finite Element Method PDF Author: Dominik Schötzau
Publisher:
ISBN:
Category :
Languages : en
Pages : 40

Get Book Here

Book Description


A Discontinuous Galerkin Method for Parabolic Problems with Modified Hp-Finite Element Approximation Technique

A Discontinuous Galerkin Method for Parabolic Problems with Modified Hp-Finite Element Approximation Technique PDF Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721650859
Category :
Languages : en
Pages : 36

Get Book Here

Book Description
A recent paper is generalized to a case where the spatial region is taken in R(sup 3). The region is assumed to be a thin body, such as a panel on the wing or fuselage of an aerospace vehicle. The traditional h- as well as hp-finite element methods are applied to the surface defined in the x - y variables, while, through the thickness, the technique of the p-element is employed. Time and spatial discretization scheme based upon an assumption of certain weak singularity of double vertical line u(sub t) double vertical line 2, is used to derive an optimal a priori error estimate for the current method. Kaneko, Hideaki and Bey, Kim S. and Hou, Gene J. W. Langley Research Center

Discontinuous Galerkin Methods for Solving Elliptic and Parabolic Equations

Discontinuous Galerkin Methods for Solving Elliptic and Parabolic Equations PDF Author: Beatrice Riviere
Publisher: SIAM
ISBN: 089871656X
Category : Mathematics
Languages : en
Pages : 201

Get Book Here

Book Description
Focuses on three primal DG methods, covering both theory and computation, and providing the basic tools for analysis.

Advanced Finite Element Methods with Applications

Advanced Finite Element Methods with Applications PDF Author: Thomas Apel
Publisher: Springer
ISBN: 3030142442
Category : Mathematics
Languages : en
Pages : 428

Get Book Here

Book Description
Finite element methods are the most popular methods for solving partial differential equations numerically, and despite having a history of more than 50 years, there is still active research on their analysis, application and extension. This book features overview papers and original research articles from participants of the 30th Chemnitz Finite Element Symposium, which itself has a 40-year history. Covering topics including numerical methods for equations with fractional partial derivatives; isogeometric analysis and other novel discretization methods, like space-time finite elements and boundary elements; analysis of a posteriori error estimates and adaptive methods; enhancement of efficient solvers of the resulting systems of equations, discretization methods for partial differential equations on surfaces; and methods adapted to applications in solid and fluid mechanics, it offers readers insights into the latest results.

SIAM Journal on Numerical Analysis

SIAM Journal on Numerical Analysis PDF Author:
Publisher:
ISBN:
Category : Numerical analysis
Languages : en
Pages : 1144

Get Book Here

Book Description


High-Order Methods for Computational Physics

High-Order Methods for Computational Physics PDF Author: Timothy J. Barth
Publisher: Springer Science & Business Media
ISBN: 366203882X
Category : Mathematics
Languages : en
Pages : 594

Get Book Here

Book Description
The development of high-order accurate numerical discretization techniques for irregular domains and meshes is often cited as one of the remaining chal lenges facing the field of computational fluid dynamics. In structural me chanics, the advantages of high-order finite element approximation are widely recognized. This is especially true when high-order element approximation is combined with element refinement (h-p refinement). In computational fluid dynamics, high-order discretization methods are infrequently used in the com putation of compressible fluid flow. The hyperbolic nature of the governing equations and the presence of solution discontinuities makes high-order ac curacy difficult to achieve. Consequently, second-order accurate methods are still predominately used in industrial applications even though evidence sug gests that high-order methods may offer a way to significantly improve the resolution and accuracy for these calculations. To address this important topic, a special course was jointly organized by the Applied Vehicle Technology Panel of NATO's Research and Technology Organization (RTO), the von Karman Institute for Fluid Dynamics, and the Numerical Aerospace Simulation Division at the NASA Ames Research Cen ter. The NATO RTO sponsored course entitled "Higher Order Discretization Methods in Computational Fluid Dynamics" was held September 14-18,1998 at the von Karman Institute for Fluid Dynamics in Belgium and September 21-25,1998 at the NASA Ames Research Center in the United States.

Finite Elements III

Finite Elements III PDF Author: Alexandre Ern
Publisher: Springer Nature
ISBN: 3030573486
Category : Mathematics
Languages : en
Pages : 417

Get Book Here

Book Description
This book is the third volume of a three-part textbook suitable for graduate coursework, professional engineering and academic research. It is also appropriate for graduate flipped classes. Each volume is divided into short chapters. Each chapter can be covered in one teaching unit and includes exercises as well as solutions available from a dedicated website. The salient ideas can be addressed during lecture, with the rest of the content assigned as reading material. To engage the reader, the text combines examples, basic ideas, rigorous proofs, and pointers to the literature to enhance scientific literacy. Volume III is divided into 28 chapters. The first eight chapters focus on the symmetric positive systems of first-order PDEs called Friedrichs' systems. This part of the book presents a comprehensive and unified treatment of various stabilization techniques from the existing literature. It discusses applications to advection and advection-diffusion equations and various PDEs written in mixed form such as Darcy and Stokes flows and Maxwell's equations. The remainder of Volume III addresses time-dependent problems: parabolic equations (such as the heat equation), evolution equations without coercivity (Stokes flows, Friedrichs' systems), and nonlinear hyperbolic equations (scalar conservation equations, hyperbolic systems). It offers a fresh perspective on the analysis of well-known time-stepping methods. The last five chapters discuss the approximation of hyperbolic equations with finite elements. Here again a new perspective is proposed. These chapters should convince the reader that finite elements offer a good alternative to finite volumes to solve nonlinear conservation equations.

Galerkin Finite Element Methods for Parabolic Problems

Galerkin Finite Element Methods for Parabolic Problems PDF Author: Vidar Thomee
Publisher: Springer Science & Business Media
ISBN: 3662033593
Category : Mathematics
Languages : en
Pages : 310

Get Book Here

Book Description
My purpose in this monograph is to present an essentially self-contained account of the mathematical theory of Galerkin finite element methods as applied to parabolic partial differential equations. The emphases and selection of topics reflects my own involvement in the field over the past 25 years, and my ambition has been to stress ideas and methods of analysis rather than to describe the most general and farreaching results possible. Since the formulation and analysis of Galerkin finite element methods for parabolic problems are generally based on ideas and results from the corresponding theory for stationary elliptic problems, such material is often included in the presentation. The basis of this work is my earlier text entitled Galerkin Finite Element Methods for Parabolic Problems, Springer Lecture Notes in Mathematics, No. 1054, from 1984. This has been out of print for several years, and I have felt a need and been encouraged by colleagues and friends to publish an updated version. In doing so I have included most of the contents of the 14 chapters of the earlier work in an updated and revised form, and added four new chapters, on semigroup methods, on multistep schemes, on incomplete iterative solution of the linear algebraic systems at the time levels, and on semilinear equations. The old chapters on fully discrete methods have been reworked by first treating the time discretization of an abstract differential equation in a Hilbert space setting, and the chapter on the discontinuous Galerkin method has been completely rewritten.

Time discretization of parabolic problems by the discontinuous Galerkin method

Time discretization of parabolic problems by the discontinuous Galerkin method PDF Author: Kenneth Eriksson
Publisher:
ISBN:
Category :
Languages : sv
Pages : 80

Get Book Here

Book Description


Mathematical Aspects of Discontinuous Galerkin Methods

Mathematical Aspects of Discontinuous Galerkin Methods PDF Author: Daniele Antonio Di Pietro
Publisher: Springer Science & Business Media
ISBN: 3642229808
Category : Mathematics
Languages : en
Pages : 392

Get Book Here

Book Description
This book introduces the basic ideas to build discontinuous Galerkin methods and, at the same time, incorporates several recent mathematical developments. The presentation is to a large extent self-contained and is intended for graduate students and researchers in numerical analysis. The material covers a wide range of model problems, both steady and unsteady, elaborating from advection-reaction and diffusion problems up to the Navier-Stokes equations and Friedrichs' systems. Both finite element and finite volume viewpoints are exploited to convey the main ideas underlying the design of the approximation. The analysis is presented in a rigorous mathematical setting where discrete counterparts of the key properties of the continuous problem are identified. The framework encompasses fairly general meshes regarding element shapes and hanging nodes. Salient implementation issues are also addressed.