Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Duality Based Adaptivity In The Hp Finite Element Method
Download Duality Based Adaptivity In The Hp Finite Element Method full books in PDF, epub, and Kindle. Read online Duality Based Adaptivity In The Hp Finite Element Method ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Computing with hp-ADAPTIVE FINITE ELEMENTS by : Leszek Demkowicz
Download or read book Computing with hp-ADAPTIVE FINITE ELEMENTS written by Leszek Demkowicz and published by CRC Press. This book was released on 2006-10-25 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering the only existing finite element (FE) codes for Maxwell equations that support hp refinements on irregular meshes, Computing with hp-ADAPTIVE FINITE ELEMENTS: Volume 1. One- and Two-Dimensional Elliptic and Maxwell Problems presents 1D and 2D codes and automatic hp adaptivity. This self-contained source discusses the theory and implementat
Book Synopsis Duality-based Adaptive Refinement for Elliptic PDEs by : Jeffrey Scott Ovall
Download or read book Duality-based Adaptive Refinement for Elliptic PDEs written by Jeffrey Scott Ovall and published by . This book was released on 2004 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Numerics of Partial Differential Equations by : Franco Brezzi
Download or read book Analysis and Numerics of Partial Differential Equations written by Franco Brezzi and published by Springer Science & Business Media. This book was released on 2012-12-22 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a selection of contributions offered by friends, collaborators, past students in memory of Enrico Magenes. The first part gives a wide historical perspective of Magenes' work in his 50-year mathematical career; the second part contains original research papers, and shows how ideas, methods, and techniques introduced by Magenes and his collaborators still have an impact on the current research in Mathematics.
Book Synopsis A New Fast and Accurate Grid Deformation Method for R-adaptivity in the Context of High Performance Computing by : Matthias Grajewski
Download or read book A New Fast and Accurate Grid Deformation Method for R-adaptivity in the Context of High Performance Computing written by Matthias Grajewski and published by Logos Verlag Berlin GmbH. This book was released on 2008 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thema der vorliegenden Arbeit ist die Entwicklung und Realisierung einer neuen Methode zur Gitterdeformation im Hinblick auf die Anwendung in r- und rh-adaptiven Verfahren. Das neu entwickelte Verfahren wird sowohl numerisch als auchtheoretisch analysiert. Die vorliegende Arbeit ist in sechs Kapitel gegliedert.Das erste Kapitel stellt den gegenwartigen Stand der Mathematik auf den Gebieten Fehlerkontrolle und Gittersteuerung dar. Besonderes Augenmerk liegt auf einer ubersicht gangiger Verfahren zur Gitterdeformation, also Methoden zur Neuanordnung der Punkte eines gegebenen Gitters unter Beibehaltung seiner Topologie. Hinzu kommt die Darstellung des Aspekts der hardware-orientierten Numerik. Hier geht es darum, durch ein geeignetes Design der numerischen Verfahren die Leistungsfahigkeit heutiger Computer voll auszuschopfen. Im zweiten Kapitel wird das Basisverfahren zur Gitterdeformation hergeleitet und grundlegende Eigenschaften der Methode bewiesen. Das neue Verfahren wird mit dem Vorlauferverfahren von Liao verglichen, wobei die weitaus grossere Flexibilitat der neuen Methode deutlich wird. Im letzten Teil dieses Kapitels wird die numerische Realisierung der Deformationsmethode mithilfe von FE-Ansatzen thematisiert. Das dritte Kapitel beinhaltet den Kern der Dissertation: Die theoretische und numerische Analyse des im zweiten Kapitel vorgestellten Basisverfahrens. Nach der Formulierung eines geeigneten Konvergenzbegriffes wird die Konvergenz der numerischen Realisierung des Deformationsverfahrens bewiesen. Sowohl der Konvergenzbegriff als auch die Konvergenzaussage sind neu und wurden bisher in der Literatur auch nicht in ahnlicher Weise formuliert. Ausfuhrliche numerische Tests bestatigen die theoretischen Ergebnisse. Das in Kapitel 2 eingefuhrte Basisverfahren wird hinsichtlich Genauigkeit und Robustheit weiterentwickelt. Durch geeignete Ausnutzung der Gitterhierarchie gelingt es mit der sog. Multilevel-Deformation ein Verfahren bereitzustellen, welches von optimaler Komplexitat ist. Im letzten Teil des Kapitels wird diese Multilevel-Deformation auf das L-Gebiet angewandt. Den Schwerpunkt im vierten Kapitel bildet die Anwendung der Gitterdeformation auf die Poisson-Gleichung auf dem L-Gebiet. Der Gradientenfehler wird auf a priori deformierten Gittern betrachtet. Die mit der Gitterdeformation erzeugten Gitter ermoglichen eine fur Q_1-Elemente optimale Konvergenzordnung. Nach einer numerischen Untersuchung des ZZ-Schatzers auf solchen Gittern wird ein voll r-adaptiver Algorithmus formuliert und getestet. Die Gitterdeformation wird nun vollautomatisch durch der geschatzten Fehlerverteilung gesteuert. Die so gewonnenen Ergebnisse sind in ihrer Genauigkeit mit den a priori gewonnen Resultaten vergleichbar. Das funfte Kapitel beinhaltet eine Erweiterung des zuvor eingefuhrten r-adaptiven Verfahrens um regulare Gitterverfeinerung und ihre Anwendung auf die Laplace-Gleichung auf dem L-Gebiet. Es werden zwei rh-adaptive Algorithmen betrachtet. Der zweite Algorithmus verzichtet auf hangende Knoten und erweist sich dem ersten als uberlegen; die Resultate entsprechen in ihrer Genauigkeit etwa den mit reiner r-Adaptivitat gewonnen Werten, erfordern aber eine erheblich geringere Rechenzeit.Im letzten Abschnitt wird die zuvor entwickelte rh-adaptive Methode auf Diffusionsprobleme mit anisotropem Diffusionstensor angewendet, die sich aus Problemen des Grundwasserflusses motivieren. Mithilfe des rh-adaptiven Verfahrens konnen nicht nur der Gradientenfehler, sondern auch abgeleitete Grossen wie der Punktfehler signifikant verringert werden. Hierbei wird die Verteilung des Punktfehlers mithilfe der DWR-Methode ermittelt. Das sechste und letzte Kapitel beinhaltet eine Zusammenfassung der Arbeit und zeigtAnsatzpunkte fur eine Fortentwicklung auf.
Download or read book ICIAM 07 written by Rolf Jeltsch and published by European Mathematical Society. This book was released on 2009 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Council for Industrial and Applied Mathematics (ICIAM) is the worldwide organization of societies which are dedicated primarily or significantly to applied and/or industrial mathematics. The ICIAM Congresses, held every 4 years, are run under the auspices of the Council with the aim to advance the applications of mathematics in all parts of the world. The Sixth ICIAM Congress was held in Zurich, Switzerland, July 16-20, 2007, and was attended by more than 3000 scientists from 47 countries. This volume collects the invited lectures of this Congress, the appreciations of the ICIAM Prize winners' achievements, and the Euler Lecture celebrating the 300th anniversary of Euler. The authors of these papers are leading researchers in their fields, rigorously selected by a distinguished international program committee. The book presents an overview of contemporary applications of mathematics, new perspectives, and open problems. Topics embrace analysis of and numerical methods for: linear and nonlinear partial differential equations multiscale modeling nonlinear problems involving integral operators controllability and observability asymptotic solutions of Hamilton-Jacobi equations contact problems in solid mechanics topology optimization of structures dissipation inequalities in systems theory greedy algorithms sampling in function space order-value optimization parabolic partial differential equations and deterministic games Moreover, particular applications involve risk in financial markets, radar imaging, brain dynamics, and complex geometric optics applied to acoustics and electromagnetics.
Book Synopsis Computational Turbulent Incompressible Flow by : Johan Hoffman
Download or read book Computational Turbulent Incompressible Flow written by Johan Hoffman and published by Springer Science & Business Media. This book was released on 2007-02-13 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is Volume 4 of the book series of the Body and Soul mathematics education reform program. It presents a unified new approach to computational simulation of turbulent flow starting from the general basis of calculus and linear algebra of Vol 1-3. The book puts the Body and Soul computational finite element methodology in the form of General Galerkin (G2) up against the challenge of computing turbulent solutions of the inviscid Euler equations and the Navier-Stokes equations with small viscosity. This is an outstanding textbook presenting plenty of new material with an excellent pedagogical approach.
Book Synopsis Numerical Methods for Nonlinear Elliptic Differential Equations by : Klaus Böhmer
Download or read book Numerical Methods for Nonlinear Elliptic Differential Equations written by Klaus Böhmer and published by Oxford University Press. This book was released on 2010-10-07 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boehmer systmatically handles the different numerical methods for nonlinear elliptic problems.
Book Synopsis Recent Advances in Adaptive Computation by : Zhongci Shi
Download or read book Recent Advances in Adaptive Computation written by Zhongci Shi and published by American Mathematical Soc.. This book was released on 2005 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been rapid development in the area of adaptive computation over the past decade. The International Conference on Recent Advances in Adaptive Computation was held at Zhejiang University (Hangzhou, China) to explore these new directions. The conference brought together specialists to discuss modern theories and practical applications of adaptive methods. This volume contains articles reflecting the invited talks given by leading mathematicians at the conference. It is suitable for graduate students and researchers interested in methods of computation.
Book Synopsis Fluid-structure Interactions by : Thomas Richter
Download or read book Fluid-structure Interactions written by Thomas Richter and published by Springer. This book was released on 2017-08-26 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book starts by introducing the fundamental concepts of mathematical continuum mechanics for fluids and solids and their coupling. Special attention is given to the derivation of variational formulations for the subproblems describing fluid- and solid-mechanics as well as the coupled fluid-structure interaction problem. Two monolithic formulations for fluid-structure interactions are described in detail: the well-established ALE formulation and the modern Fully Eulerian formulation, which can effectively deal with problems featuring large deformation and contact. Further, the book provides details on state-of-the-art discretization schemes for fluid- and solid-mechanics and considers the special needs of coupled problems with interface-tracking and interface-capturing techniques. Lastly, advanced topics like goal-oriented error estimation, multigrid solution and gradient-based optimization schemes are discussed in the context of fluid-structure interaction problems.
Book Synopsis Quality and Reliability of Large-Eddy Simulations by : Johan Meyers
Download or read book Quality and Reliability of Large-Eddy Simulations written by Johan Meyers and published by Springer Science & Business Media. This book was released on 2008-06-26 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational resources have developed to the level that, for the first time, it is becoming possible to apply large-eddy simulation (LES) to turbulent flow problems of realistic complexity. Many examples can be found in technology and in a variety of natural flows. This puts issues related to assessing, assuring, and predicting the quality of LES into the spotlight. Several LES studies have been published in the past, demonstrating a high level of accuracy with which turbulent flow predictions can be attained, without having to resort to the excessive requirements on computational resources imposed by direct numerical simulations. However, the setup and use of turbulent flow simulations requires a profound knowledge of fluid mechanics, numerical techniques, and the application under consideration. The susceptibility of large-eddy simulations to errors in modelling, in numerics, and in the treatment of boundary conditions, can be quite large due to nonlinear accumulation of different contributions over time, leading to an intricate and unpredictable situation. A full understanding of the interacting error dynamics in large-eddy simulations is still lacking. To ensure the reliability of large-eddy simulations for a wide range of industrial users, the development of clear standards for the evaluation, prediction, and control of simulation errors in LES is summoned. The workshop on Quality and Reliability of Large-Eddy Simulations, held October 22-24, 2007 in Leuven, Belgium (QLES2007), provided one of the first platforms specifically addressing these aspects of LES.
Book Synopsis ADIGMA – A European Initiative on the Development of Adaptive Higher-Order Variational Methods for Aerospace Applications by : Norbert Kroll
Download or read book ADIGMA – A European Initiative on the Development of Adaptive Higher-Order Variational Methods for Aerospace Applications written by Norbert Kroll and published by Springer Science & Business Media. This book was released on 2010-09-18 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains results gained from the EU-funded 6th Framework project ADIGMA (Adaptive Higher-order Variational Methods for Aerodynamic Applications in Industry). The goal of ADIGMA was the development and utilization of innovative adaptive higher-order methods for the compressible flow equations enabling reliable, mesh independent numerical solutions for large-scale aerodynamic applications in aircraft industry. The ADIGMA consortium was comprised of 22 organizations which included the main European aircraft manufacturers, the major European research establishments and several universities, all with well proven expertise in Computational Fluid Dynamics (CFD). The book presents an introduction to the project, exhibits partners’ methods and approaches and provides a critical assessment of the newly developed methods for industrial aerodynamic applications. The best numerical strategies for integration as major building blocks for the next generation of industrial flow solvers are identified.
Book Synopsis Adaptive Finite Elements in Linear and Nonlinear Solid and Structural Mechanics by : Erwin Stein
Download or read book Adaptive Finite Elements in Linear and Nonlinear Solid and Structural Mechanics written by Erwin Stein and published by Springer Science & Business Media. This book was released on 2007-04-02 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This course with 6 lecturers intends to present a systematic survey of recent re search results of well-known scientists on error-controlled adaptive finite element methods in solid and structural mechanics with emphasis to problem-dependent concepts for adaptivity, error analysis as well as h- and p-adaptive refinement techniques including meshing and remeshing. Challenging applications are of equal importance, including elastic and elastoplastic deformations of solids, con tact problems and thin-walled structures. Some major topics should be pointed out, namely: (i) The growing importance of goal-oriented and local error estimates for quan tities of interest—in comparison with global error estimates—based on dual finite element solutions; (a) The importance of the p-version of the finite element method in conjunction with parameter-dependent hierarchical approximations of the mathematical model, for example in boundary layers of elastic plates; (Hi) The choice of problem-oriented error measures in suitable norms, consider ing residual, averaging and hierarchical error estimates in conjunction with the efficiency of the associated adaptive computations; (iv) The importance of implicit local postprocessing with enhanced test spaces in order to get constant-free, i. e. absolute-not only relative-discretizati- error estimates; (v) The coupling of error-controlled adaptive discretizations and the mathemat ical modeling in related subdomains, such as boundary layers. The main goals of adaptivity are reliability and efficiency, combined with in sight and access to controls which are independent of the applied discretization methods. By these efforts, new paradigms in Computational Mechanics should be realized, namely verifications and even validations of engineering models.
Book Synopsis Handbook of Numerical Methods for Hyperbolic Problems by : Remi Abgrall
Download or read book Handbook of Numerical Methods for Hyperbolic Problems written by Remi Abgrall and published by Elsevier. This book was released on 2017-01-16 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook on Numerical Methods for Hyperbolic Problems: Applied and Modern Issues details the large amount of literature in the design, analysis, and application of various numerical algorithms for solving hyperbolic equations that has been produced in the last several decades. This volume provides concise summaries from experts in different types of algorithms, so that readers can find a variety of algorithms under different situations and become familiar with their relative advantages and limitations. - Provides detailed, cutting-edge background explanations of existing algorithms and their analysis - Presents a method of different algorithms for specific applications and the relative advantages and limitations of different algorithms for engineers or those involved in applications - Written by leading subject experts in each field, the volumes provide breadth and depth of content coverage
Book Synopsis Acta Numerica 2002: Volume 11 by : Arieh Iserles
Download or read book Acta Numerica 2002: Volume 11 written by Arieh Iserles and published by Cambridge University Press. This book was released on 2002-07 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: An annual volume presenting substantive survey articles in numerical mathematics and scientific computing.
Book Synopsis Adaptive Finite Element Methods for Differential Equations by : Wolfgang Bangerth
Download or read book Adaptive Finite Element Methods for Differential Equations written by Wolfgang Bangerth and published by Birkhäuser. This book was released on 2013-11-11 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: These Lecture Notes have been compiled from the material presented by the second author in a lecture series ('Nachdiplomvorlesung') at the Department of Mathematics of the ETH Zurich during the summer term 2002. Concepts of 'self adaptivity' in the numerical solution of differential equations are discussed with emphasis on Galerkin finite element methods. The key issues are a posteriori er ror estimation and automatic mesh adaptation. Besides the traditional approach of energy-norm error control, a new duality-based technique, the Dual Weighted Residual method (or shortly D WR method) for goal-oriented error estimation is discussed in detail. This method aims at economical computation of arbitrary quantities of physical interest by properly adapting the computational mesh. This is typically required in the design cycles of technical applications. For example, the drag coefficient of a body immersed in a viscous flow is computed, then it is minimized by varying certain control parameters, and finally the stability of the resulting flow is investigated by solving an eigenvalue problem. 'Goal-oriented' adaptivity is designed to achieve these tasks with minimal cost. The basics of the DWR method and various of its applications are described in the following survey articles: R. Rannacher [114], Error control in finite element computations. In: Proc. of Summer School Error Control and Adaptivity in Scientific Computing (H. Bulgak and C. Zenger, eds), pp. 247-278. Kluwer Academic Publishers, 1998. M. Braack and R. Rannacher [42], Adaptive finite element methods for low Mach-number flows with chemical reactions.
Book Synopsis Journal of Numerical Mathematics by :
Download or read book Journal of Numerical Mathematics written by and published by . This book was released on 2003 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advances in Scientific Computing and Applications by : Jichun Li
Download or read book Recent Advances in Scientific Computing and Applications written by Jichun Li and published by American Mathematical Soc.. This book was released on 2013-04-24 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the Eighth International Conference on Scientific Computing and Applications, held April 1-4, 2012, at the University of Nevada, Las Vegas. The papers in this volume cover topics such as finite element methods, multiscale methods, finite difference methods, spectral methods, collocation methods, adaptive methods, parallel computing, linear solvers, applications to fluid flow, nano-optics, biofilms, finance, magnetohydrodynamics flow, electromagnetic waves, the fluid-structure interaction problem, and stochastic PDEs. This book will serve as an excellent reference for graduate students and researchers interested in scientific computing and its applications.
