Download or read book SIMULATION NUMERIQUE DES ECOULEMENTS PULSES INSTATIONNAIRES DANS LES CONDUITES AVEC SINGULARITE DE SECTION written by CHABNAM.. ESFANDIARI and published by . This book was released on 1985 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE THEORIQUE DU SYSTEME D'EQUATIONS REGISSANT LES ECOULEMENTS PULSES INSTATIONNAIRES. ETUDE DE LA PROPAGATION ET DE LA REFLEXION DES ONDES DE PRESSION DANS LES CONDUITES A SECTION CONSTANTE OU VARIABLE. ANALYSE DU PROCEDE DE CALCUL PAR UNE METHODE PUREMENT NUMERIQUE. CONTROLE NUMERIQUE ET ANALYTIQUE DU CHANGEMENT DE FREQUENCE INDUIT PAR UNE SINGULARITE DE SECTION. PROPOSITION D'UN MODELE COMPLET DE CALCUL CONTENANT TOUS LES PHENOMENES PREPONDERANTS EXISTANT DANS LES TUBULURES D'ECHAPPEMENT

Download or read book Analyse physique mod lisation et simulation num rique des coulements turbulents instationnaires en canal puls s written by Mustapha-el-Habib Boudghène-Stambouli and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES TRAVAUX REALISES DANS CETTE ETUDE S'INSCRIVENT DANS LE CADRE DE L'ANALYSE DES ECOULEMENTS INSTATIONNAIRES. ELLE CONCERNE PLUS PARTICULIEREMENT LES ECOULEMENTS INSTATIONNAIRES PULSES EN CANAL. LE CHOIX DE CETTE CONFIGURATION A ETE FAITE DANS LE BUT D'ETUDIER SEPAREMENT L'INFLUENCE DES DIFFERENTS PARAMETRES QUI GERENT CE TYPE D'ECOULEMENT. LE TRAVAIL RAPPORTE CONCERNE: (I) LA VALIDATION D'UN CODE DE CALCUL ; (II) UNE ANALYSE PHYSIQUE: *TOUT D'ABORD, DANS LE CAS LAMINAIRE, *DANS LE CAS TRANSITIONNEL, PAR L'ETUDE DE L'INFLUENCE DE L'INSTATIONNARITE SUR LA TRANSITION DE LA COUCHE LIMITE, *ENFIN, DANS LE CAS PLUS COMPLEXE A SAVOIR L'ETAT TURBULENT OU UNE ETUDE PARAMETRIQUE S'AVERA UTILE DANS LA COMPREHENSION DES MECANISMES PHYSIQUES DE CE TYPE D'ECOULEMENT AINSI QUE DANS LE COMPORTEMENT DES DIFFERENTS MODELES DE TURBULENCE ; (III) UNE EVALUATION DES MODELES DE FERMETURE A ZERO EQUATION, A DEUX EQUATIONS ET A FAIBLES NOMBRES DE REYNOLDS DE TURBULENCE AINSI QU'UN MODELE AUX CONTRAINTES DE REYNOLDS ; (IV) LE BUT ULTIME DE CETTE ANALYSE DEVRA NOUS CONDUIRE A UNE MEILLEURE MODELISATION DES ECOULEMENTS INSTATIONNAIRES

Download or read book SIMULATION NUMERIQUE DES ECOULEMENTS PULSES INSTATIONNAIRES A TRAVERS DES JONCTIONS A L ECHAPPEMENT D UN MOTEUR written by BOUSSAD.. BOUMEDDANE and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL PRESENTE EST UNE CONTRIBUTION A LA SIMULATION DES ECOULEMENTS PULSES INSTATIONNAIRES A TRAVERS DES JONCTIONS A L'AIDE D'UNE METHODE NUMERIQUE PERMETTANT DE RESOUDRE LE SYSTEME D'EQUATIONS AUX DERIVEES PARTIELLES DE LA DYNAMIQUE DES GAZ REGISSANT LES ECOULEMENTS INSTATIONNAIRES A L'ECHAPPEMENT D'UN MOTEUR. POUR PARVENIR AUX OBJECTIFS FIXES NOUS AVONS CONCU UN CODE DE CALCUL BASE SUR LE SCHEMA AUX DIFFERENCES DE GODOUNOV PRECIS AU PREMIER ORDRE. CE CODE DE CALCUL PERMET DE REALISER UNE SIMULATION NUMERIQUE BIDIMENSIONNELLE A TRAVERS DES JONCTIONS, DES COUDES, DES DIVERGENTS, DES CONVERGENTS, DES ELARGISSEMENTS BRUSQUES ET DES RETRECISSEMENTS BRUSQUES. LES RESULTATS OBTENUS SONT TRES SATISFAISANTS ET OUVRE LA VOIE A LA REALISATION D'UN CODE GENERAL DE SIMULATION DES ECOULEMENTS PULSES A TRAVERS UN SYSTEME D'ECHAPPEMENT COMPLET. IL RESTE NEANMOINS A ADJOINDRE AU CODE DE CALCUL ETABLI UN MODULE DE FROTTEMENT DANS LE CALCUL DES CORRECTEURS DU SCHEMA NUMERIQUE. D'AUTRE PART POUR AVOIR DES CONDITIONS AUX LIMITES VALABLES POUR LE SYSTEME D'EQUATIONS DE LA DYNAMIQUE DES GAZ, ON DOIT INSTRUMENTER LE BANC D'ESSAI DE TELLE FACON QUE L'ON PUISSE MESURER SIMULTANEMENT LES PRESSIONS, LES VITESSES ET LES TEMPERATURES INSTANTANEES

Download or read book Proceedings of the Spring Technical Conference of the ASME Internal Combustion Engine Division written by American Society of Mechanical Engineers. Internal Combustion Engine Division. Spring Technical Conference and published by . This book was released on 2002 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SIMULATION NUMERIQUE D ECOULEMENTS PAR DES METHODES DE TRANSFORMATION DE DOMAINES written by AHMAD.. MAHMOUD and published by . This book was released on 1999 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL FAIT LE POINT SUR LES METHODES DE TRANSFORMATION DE DOMAINES UTILISEES POUR LA SIMULATION NUMERIQUE D'ECOULEMENTS BI- ET TRIDIMENSIONNELS. DANS CE CADRE, NOUS AVONS DEVELOPPE DES METHODES DE TRANSFORMATION PERMETTANT DE CALCULER DES ECOULEMENTS ETABLIS DANS DES FILIERES A SECTION CONSTANTE, MAIS QUELCONQUE, ET DES ECOULEMENTS COMPLEXES, POUR DES MODELES RHEOLOGIQUES DE TYPE NEWTONIEN, NON-NEWTONIEN PUREMENT VISQUEUX ET VISCOELASTIQUE. A LA DIFFERENCE DES ANALYSES PROPOSEES DANS LA LITTERATURE, NOUS CONSIDERONS UNE TRANSFORMATION INCONNUE ENTRE LE DOMAINE PHYSIQUE ET UN DOMAINE TRANSFORME (DE CALCUL) PLUS SIMPLE, ANALYSE A LAQUELLE SE RATTACHENT LES METHODES DE TUBES DE COURANT. PLUSIEURS PROBLEMES ONT ETE ABORDES ET RESOLUS : 1) LA SIMULATION D'ECOULEMENTS ETABLIS DE FLUIDES OBEISSANT A DES LOIS DE COMPORTEMENT NEWTONIENNE, NON-NEWTONIENNE PUREMENT VISQUEUSE ET VISCOELASTIQUE INTEGRALE POUR DES CONDUITES DE SECTIONS COMPLEXES, POUR LESQUELLES UNE APPROCHE PAR DECOMPOSITION DE DOMAINES A ETE MISE EN OEUVRE. 2) LE CALCUL D'ECOULEMENTS AXISYMETRIQUES A SURFACE LIBRE INCONNUE CORRESPONDANT A L'EXTRUSION EN SORTIE DE FILIERE ANNULAIRE, POUR UN LIQUIDE NEWTONIEN. 3) LA SIMULATION DE PROBLEMES D'ECOULEMENTS AXISYMETRIQUES COMPORTANT DES ZONES DE SINGULARITE : SURFACES AVEC TRANSITION ADHERENCE-GLISSEMENT OU LIBRES. DANS LE CONTEXTE D'UNE ANALYSE DE TUBES DE COURANT, UNE FORMULATION ORIGINALE PAR ELEMENTS FINIS UTILISANT LA METHODE DE GALERKIN A ETE PROPOSEE POUR LES CAS 2D ET 3D. LES RESULTATS, OBTENUS AVEC DES ELEMENTS D'APPROXIMATION D'HERMITE SONT CONFORMES A CEUX DE LA LITTERATURE, POUR LE CAS NEWTONIEN ET EN ACCORD AVEC LES DONNEES EXPERIMENTALES SUR UN POLYETHYLENE LINEAIRE DE BASSE DENSITE REPRESENTE PAR UNE LOI DE COMPORTEMENT INTEGRALE.

Download or read book Boundary Layer Theory written by Hermann Schlichting (Deceased) and published by Springer. This book was released on 2016-10-04 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of the near-legendary textbook by Schlichting and revised by Gersten presents a comprehensive overview of boundary-layer theory and its application to all areas of fluid mechanics, with particular emphasis on the flow past bodies (e.g. aircraft aerodynamics). The new edition features an updated reference list and over 100 additional changes throughout the book, reflecting the latest advances on the subject.

Download or read book The Theory of Ionization of Gases by Collision written by Sir John Townsend and published by . This book was released on 1910 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Theory of Propellers written by Theodore Theodorsen and published by . This book was released on 1944 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: A technical method is given for calculating the axial interference velocity of a propeller. The method involves the use of certain weight functions P, Q, and F. Numerical values for the weight functions are given for two-blade, three-blade, and six-blade propellers.

Download or read book Reservoir Sedimentation written by Anton J. Schleiss and published by CRC Press. This book was released on 2014-08-12 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the mechanisms of reservoir sedimentation being well known for a long time, sustainable and preventive measures are rarely taken into consideration in the design of new reservoirs. To avoid operational problems of powerhouses, sedimentation is often treated for existing reservoirs with measures which are efficient only for a limited time.Th

Download or read book Genmix written by D Brian Spalding and published by Elsevier. This book was released on 2014-05-18 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genmix: A General Computer Program for Two-dimensional Parabolic Phenomena explains a computer program called GENMIX. The main intention of the program is to be used as a tool of instructions. The name of the program is a mixture of two considerations: its generality and its concern for mixing processes. The book aims to help the potential user to understand the physical and mathematical basis of the topic computer program. It is also the aim of the book to make the program applicable to practical problems. The book is arranged in such a way as to parallel a course of lectures and associated computer-workshop sessions wherein the student is allowed to do some elementary computations as soon as he has gained some knowledge of the method. The book contains the mathematical, physical, and computer-coding aspects of the program. Concepts such as the boundary layer, two-dimensional, and steady- flow are defined and discussed in depth. The text will be a useful tool for computer instructors and students.

Download or read book Fundamentals of Heat and Mass Transfer written by S. C. Bhatia and published by . This book was released on 2002-02-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat and Mass Transfer in Boundary Layers written by Suhas V. Patankar and published by . This book was released on 1970 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Convective Mass Transfer written by Dudley Brian Spalding and published by . This book was released on 1963 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat and Mass Transfer in Recirculating Flows written by A. D. Gosman and published by . This book was released on 1969 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annular Two Phase Flow written by Geoffrey Hewitt and published by Elsevier. This book was released on 2013-10-22 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annular Two-Phase Flow presents the wide range of industrial applications of annular two-phase flow regimes. This book discusses the fluid dynamics and heat transfer aspects of the flow pattern. Organized into 12 chapters, this book begins with an overview of the classification of the various types of interface distribution observed in practice. This text then examines the various regimes of two-phase flow with emphasis on the regions of occurrence of the annular flow regime. Other chapters consider the single momentum and energy balances, which illustrate the differences and analogies between single- and two-phase flows. This book discusses as well the simple modes for annular flow with consideration to the calculation of the profile of shear stress in the liquid film. The final chapter deals with the techniques that are developed for the measurement of flow pattern, entrainment, and film thickness. This book is a valuable resource for chemical engineers.

Download or read book Calculations in Furnace Technology written by Clive Davies and published by Elsevier. This book was released on 2016-05-13 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations in Furnace Technology presents the theoretical and practical aspects of furnace technology. This book provides information pertinent to the development, application, and efficiency of furnace technology. Organized into eight chapters, this book begins with an overview of the exothermic reactions that occur when carbon, hydrogen, and sulfur are burned to release the energy available in the fuel. This text then evaluates the efficiencies to measure the quantity of fuel used, of flue gases leaving the plant, of air entering, and the heat lost to the surroundings. Other chapters consider that it is important to determine the amount of carbon discharged with the ashes, the quantity and composition of any tar produced, so that a carbon balance can be applied. The final chapter describes the various reactions within the furnace atmosphere and between charges and atmosphere. This book is a valuable resource for fuel technologists, heating and ventilating engineers, and plant operators.

Download or read book Computational Heat Transfer written by Yogesh Jaluria and published by Routledge. This book was released on 2017-10-19 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition updated the material by expanding coverage of certain topics, adding new examples and problems, removing outdated material, and adding a computer disk, which will be included with each book. Professor Jaluria and Torrance have structured a text addressing both finite difference and finite element methods, comparing a number of applicable methods.