Download or read book Application de la m thode des l ments finis au calcul d coulements fluides written by Gill SULLY and published by . This book was released on 1991 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Une application de la m thode des l ments finis mixtes au calcul bidimensionnel d un fluide diphasique written by Jean-Louis Montagne and published by . This book was released on 1981 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quelques probl mes li s au calcul d coulements de fluides parfaits dans les tuy res written by François Dubois and published by . This book was released on 1988 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calcul numérique par la méthode des éléments finis au moyen d'un potentiel vecteur. Application aux écoulements transsoniques bidimensionnels dans les tuyères et autour de profils d'ailes.

Download or read book Recent Advances In Numerical Methods And Applications Ii Proceedings Of The Fourth International Conference written by Panayot S Vassilevski and published by World Scientific. This book was released on 1999-07-05 with total page 925 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the 4th International Conference on Numerical Methods and Applications. The major topics covered include: general finite difference, finite volume, finite element and boundary element methods, general numerical linear algebra and parallel computations, numerical methods for nonlinear problems and multiscale methods, multigrid and domain decomposition methods, CFD computations, mathematical modeling in structural mechanics, and environmental and engineering applications. The volume reflects the current research trends in the specified areas of numerical methods and their applications.

Download or read book Computation and Applied Mathematics written by and published by . This book was released on 1982 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book La Mod lisation fine des coulements written by and published by . This book was released on 1982 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mod lisation des coulements hydrodynamiques sym trie axiale par la m thode des l ments finis written by Behrooz Nasseri and published by . This book was released on 1984 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le but de cette étude est la modélisation et l'analyse numérique d'écoulements stationnaires laminaires de fluides incompressibles en coordonnées axi-symétriques par éléments finis. La méthode des éléments finis a été introduite récemment dans l'étude des problèmes de mécanique des fluides et présente certains avantages sur la méthode des différences finies. Il y a plusieurs façons de formuler les équations de Navier-Stokes, soit en prenant comme variables primaires U, V, W les composantes de la vitesse et la pression P, soit en utilisant la fonction courant et la vorticité. Les difficultés rencontrées sont différentes, en particulier dans le dernier cas où les équations sont du 4ème ordre et présente des difficultés dans l'introduction des conditions aux limites. Le perfectionnement de ces méthodes numériques appliquées à la mécanique des fluides rend possibles des applications de plus en plus nombreuses en milieu industriel. La méthode des éléments finis y trouve une large place et la classe des problèmes posés est importante. Dans le présent travail nous nous proposons de perfectionner l'outil numérique, représenté par la méthode des éléments finis, appliqué à une classe de problèmes du type axisymétrique, parmi lesquels nous pouvons citer : - les machines à fluide tournant ; - singularités hydrodynamiques ; - convection forcée ; - surface libre déformable. Sur le plan numérique, le principal problème posé concerne la résolution de systèmes non-linéaires, Pour cela, nous apportons un soin particulier au maillage qui doit être suffisant pour assurer, dans certains cas, une bonne convergence des méthodes numériques, être également compatible avec les conditions économiques du déroulement du calcul. Des difficultés de convergence des méthodes numériques de type Newton peuvent cependant apparaître, notamment pour des nombres de Reynolds élevés, un chargement par pas devient alors nécessaire. Il est alors possible d'élaborer un modèle numérique correct des dispositifs cités ci-dessus.

Download or read book Numerical Modeling in Materials Science and Engineering written by Michel Rappaz and published by Springer Science & Business Media. This book was released on 2010-03-11 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computing application to materials science is one of the fastest-growing research areas. This book introduces the concepts and methodologies related to the modeling of the complex phenomena occurring in materials processing. It is intended for undergraduate and graduate students in materials science and engineering, mechanical engineering and physics, and for engineering professionals or researchers.

Download or read book Mixed and Hybrid Finite Element Methods written by Franco Brezzi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on non-standard finite element methods is evolving rapidly and in this text Brezzi and Fortin give a general framework in which the development is taking place. The presentation is built around a few classic examples: Dirichlet's problem, Stokes problem, Linear elasticity. The authors provide with this publication an analysis of the methods in order to understand their properties as thoroughly as possible.

Download or read book Finite Element Methods for Navier Stokes Equations written by Vivette Girault and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The material covered by this book has been taught by one of the authors in a post-graduate course on Numerical Analysis at the University Pierre et Marie Curie of Paris. It is an extended version of a previous text (cf. Girault & Raviart [32J) published in 1979 by Springer-Verlag in its series: Lecture Notes in Mathematics. In the last decade, many engineers and mathematicians have concentrated their efforts on the finite element solution of the Navier-Stokes equations for incompressible flows. The purpose of this book is to provide a fairly comprehen sive treatment of the most recent developments in that field. To stay within reasonable bounds, we have restricted ourselves to the case of stationary prob lems although the time-dependent problems are of fundamental importance. This topic is currently evolving rapidly and we feel that it deserves to be covered by another specialized monograph. We have tried, to the best of our ability, to present a fairly exhaustive treatment of the finite element methods for inner flows. On the other hand however, we have entirely left out the subject of exterior problems which involve radically different techniques, both from a theoretical and from a practical point of view. Also, we have neither discussed the implemen tation of the finite element methods presented by this book, nor given any explicit numerical result. This field is extensively covered by Peyret & Taylor [64J and Thomasset [82].

Download or read book Code d l ments finis pour la r solution de probl mes d quations aux d riv es partielles written by Dominique Sandri and published by . This book was released on 2010 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous présentons dans ce document un code qui met en œuvre la méthode des éléments finis (MEF) pour la résolution approchée des équations aux dérivées partielles (EDP) en dimension 2 (2-D). Le mode d'utilisation de ce code est illustré par des exemples issus de divers types de problèmes d'EDP. Ce code permet notamment la mise en œuvre de méthodes d'EF pour l'approximation d'écoulements de fluides viscoélastiques.

Download or read book Numerical Methods for Nonlinear Variational Problems written by Roland Glowinski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the mathematical background and reviews the techniques for solving problems, including those that require large computations such as transonic flows for compressible fluids and the Navier-Stokes equations for incompressible viscous fluids. Finite element approximations and non-linear relaxation, and nonlinear least square methods are all covered in detail, as are many applications. This volume is a classic in a long-awaited softcover re-edition.

Download or read book RESOLUTION PAR UNE METHODE D ELEMENTS FINIS D EQUATIONS DE LA MECANIQUE DES FLUIDES written by M. A. Keramsi and published by . This book was released on 1976 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES EQUATIONS. EQUATION DE TRANSPORT. APPROXIMATION PAR ELEMENTS FINIS. L'EQUATION DE PROPAGATION. L'EQUATION DE SAINT VENANT. L'EQUATION DE DIFFUSION. PROGRAMME DE CALCUL.

Download or read book M thodes num riques pour les fluides visco lastiques written by Ahmed Machmoum and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON ETUDIE DANS CE TRAVAIL LA METHODE DES CARACTERISTIQUES: SES LIENS AVEC LA METHODE DE GALERKIN DISCONTINUE, SON UTILISATION POUR L'APPROXIMATION DES ECOULEMENTS DE FLUIDES VISCOELASTIQUES (PARTICULIEREMENT LES MODELES DIFFERENTIELS, MAIS UNE METHODE POUR LES MODELES INTEGRAUX EST EGALEMENT PRESENTEE). DANS LE CHAPITRE 1, ON PRESENTE UNE DESCRIPTION DE LA METHODE DES CARACTERISTIQUES POUR UN PROBLEME DE TRANSPORT SOUS SES DEUX FORMES, FAIBLE ET FORTE. A PARTIR D'UN PROBLEME DE CONVECTION STATIONNAIRE (P), NOUS DEFINISSONS, A L'AIDE DE CETTE METHODE, UN PROBLEME (P#K), DONT ON DEMONTRE L'EXISTENCE ET L'UNICITE D'UNE SOLUTION DANS LE CAS OU LA DIVERGENCE DE LA VITESSE EST NULLE. ON OBTIENT UNE MAJORATION D'ERREUR. ON DONNE LE LIEN FORMEL ENTRE LA METHODE DE GALERKIN DISCONTINUE ET LA METHODE DES CARACTERISTIQUES. DANS LE CHAPITRE 2, ON CONSIDERE, POUR L'EQUATION DE CONVECTION STATIONNAIRE A UNE VARIABLE, LA METHODE DES CARACTERISTIQUES DE PSEUDO-PAS DE TEMPS K AVEC APPROXIMATION DE L'INCONNUE PAR DES ELEMENTS FINIS P#R DISCONTINUS SUR UN MAILLAGE T#H. ON CONSTRUIT, POUR CETTE METHODE, UNE NORME NATURELLE NOTEE #H#,#K, POUR LAQUELLE ON MONTRE QUE LE PROBLEME VARIATIONNEL APPROCHE (P#K#H) EST BIEN POSE ET ON OBTIENT UNE MAJORATION D'ERREUR. ON MONTRE QUE, QUAND K TEND VERS ZERO, LE PROBLEME (P#K#H) (RESP. LA NORME #H#,#K) A POUR LIMITE LE PROBLEME (P#H) (RESP. LA NORME #H), ASSOCIE A LA METHODE DE GALERKIN DISCONTINUE. DANS LE CHAPITRE 3, ON PRESENTE UNE DESCRIPTION DES METHODES D'ELEMENTS FINIS POUR LA SIMULATION D'ECOULEMENTS VISCOELASTIQUES OBEISSANT A DES LOIS DIFFERENTIELLES ET INTEGRALES. DANS LE CHAPITRE 4, ON DEMONTRE QUE LE PROBLEME (P#K), DEFINI AU CHAPITRE 1, ADMET UNE SOLUTION UNIQUE DANS LE CAS OU LA DIVERGENCE DE LA VITESSE EST NON NULLE ET ON DONNE UNE MAJORATION D'ERREUR. ON ETUDIE UNE APPROXIMATION PAR ELEMENTS FINIS D'ECOULEMENTS DE FLUIDES VISCOELASTIQUES REGIS PAR UNE LOI DE COMPORTEMENT DIFFERENTIELLE DE TYPE OLDROYD B. LES APPROXIMATIONS DES CONTRAINTES, DES VITESSES ET DES PRESSIONS SONT RESPECTIVEMENT P#1-DISCONTINUES, P#2-CONTINUES, P#1-CONTINUES. LA CONVECTION DES CONTRAINTES EST TRAITEE PAR LA METHODE DES CARACTERISTIQUES. ON FAIT L'HYPOTHESE QUE LE PROBLEME D'OLDROYD ADMET UNE SOLUTION SUFFISAMMENT REGULIERE ET SUFFISAMMENT PETITE. ON MONTRE PAR UNE METHODE DE POINT FIXE QU'UN PROBLEME SEMI-LINEARISE APPROCHE A UNE SOLUTION ET ON DONNE UNE MAJORATION D'ERREUR. ENFIN, DANS LE CHAPITRE 5, ON DONNE UNE METHODE NUMERIQUE POUR LE CALCUL D'ECOULEMENTS DE FLUIDES VICOELASTIQUES INSTATIONNAIRES REGIS PAR UNE LOI INTEGRALE DE TYPE OLDROYD B, EN UTILISANT LA METHODE DES CARACTERISTIQUES

Download or read book Calcul par une m thode d l ments finis de l influence d une cavit sur un coulement de fluide fisqueux au voisinage d un point d arr t written by Jacques Philipp and published by . This book was released on 1980 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Finite Element Method for Elliptic Problems written by Philippe G. Ciarlet and published by SIAM. This book was released on 2002-04-01 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the only book available that fully analyzes the mathematical foundations of the finite element method. Not only is it valuable reference and introduction to current research, it is also a working textbook for graduate courses in numerical analysis, including useful figures and exercises of varying difficulty.

Download or read book The Finite Element Method for Elliptic Problems written by P.G. Ciarlet and published by Elsevier. This book was released on 1978-01-01 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to analyze within reasonable limits (it is not a treatise) the basic mathematical aspects of the finite element method. The book should also serve as an introduction to current research on this subject. On the one hand, it is also intended to be a working textbook for advanced courses in Numerical Analysis, as typically taught in graduate courses in American and French universities. For example, it is the author's experience that a one-semester course (on a three-hour per week basis) can be taught from Chapters 1, 2 and 3 (with the exception of Section 3.3), while another one-semester course can be taught from Chapters 4 and 6. On the other hand, it is hoped that this book will prove to be useful for researchers interested in advanced aspects of the numerical analysis of the finite element method. In this respect, Section 3.3, Chapters 5, 7 and 8, and the sections on "Additional Bibliography and Comments should provide many suggestions for conducting seminars.