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Methodologie Pour La Simulation Numerique Des Vibrations Induites Par Ecoulements Dans Les Faisceaux De Tubes
Download Methodologie Pour La Simulation Numerique Des Vibrations Induites Par Ecoulements Dans Les Faisceaux De Tubes full books in PDF, epub, and Kindle. Read online Methodologie Pour La Simulation Numerique Des Vibrations Induites Par Ecoulements Dans Les Faisceaux De Tubes ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Méthodologie pour la simulation numérique des vibrations induites par écoulements dans les faisceaux de tubes by : Zaky Bendjeddou
Download or read book Méthodologie pour la simulation numérique des vibrations induites par écoulements dans les faisceaux de tubes written by Zaky Bendjeddou and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cette thèse présente une méthodologie pour la simulation numérique des vibrations induites par les écoulements dans les faisceaux de tubes. Dans un premier temps une validation des efforts fluides exercés sur un tube fixe dans une configuration de canal ou de faisceaux de tubes en écoulements laminaires et turbulents est présentée. Dans un deuxième temps la fonnulation Arbitraire Lagrange Euler (ALE) des équations de Navier-Stokes permettant la gestion de frontières mobiles est décrite, en particulier le choix et le calcul de la vitesse de maillage. Ensuite les schémas de couplage utilisés pour la modélisation des couplages fluide-structure sont décrits et les propriétés des schémas explicites et implicites sont étudiés. Une première validation des coefficients de couplage fluide structure sur des configurations avec cylindres concentriques et de faisceaux de tubes est présentée. Enfin une première simulation numérique des couplages fluide-élastiques en faisceaux de tubes en présence d'écoulements transverses laminaires est réalisée avec identification numérique de premiers paramètres fluide-élastiques et mise en évidence de départs en instabilité fluide-élastique.
Book Synopsis Numerical Modeling of Coupled Phenomena in Science and Engineering by : Mario César Suárez Arriaga
Download or read book Numerical Modeling of Coupled Phenomena in Science and Engineering written by Mario César Suárez Arriaga and published by CRC Press. This book was released on 2008-12-01 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics is a universal language. Differential equations, mathematical modeling, numerical methods and computation form the underlying infrastructure of engineering and the sciences. In this context mathematical modeling is a very powerful tool for studying engineering problems, natural systems and human society. This interdisciplinary book cont
Book Synopsis Méthode d'homogénéisation pour la vibration de faisceaux de tubes en présence de fluide by : Quentin Desbonnets
Download or read book Méthode d'homogénéisation pour la vibration de faisceaux de tubes en présence de fluide written by Quentin Desbonnets and published by . This book was released on 2012 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans l'industrie nucléaire on rencontre fréquemment des problématiques mettant en jeu des faisceaux de tubes immergés dans un fluide. Les problématiques de sureté nucléaire font que les comportements des ces systèmes sous sollicitation sismique doivent être maîtrisés. Les systèmes de type faisceau de tubes en présence de fluide voient leur comportement vibratoire modifié. Par leurs géométries complexes, la simulation numérique de ces systèmes nécessite des temps de calculs extrêmement importants. Afin de surmonter ce problème, des modèles homogénéisés ont été mis en place. Ces modèles sont basés sur les équations d'Euler linéarisées pour le fluide. Cependant ils ne prennent en compte que les effets inertiels, et supposent des très petits déplacements de structures. Pour y remédier, on développe donc de nouveaux modèles à partir des équations de Navier-Stokes. Cette thèse porte sur la mise en place d'un modèle homogénéisé de la vibration d'un faisceau de tubes immergé dans du fluide. Le fluide est visqueux et les mouvements de structure sont importants. À partir d'une méthode de prise de moyenne, on établit un modèle homogénéisé se basant sur la notion de vitesse de Darcy. Le modèle obtenu dépend de deux paramètres : Le coefficient de masse ajoutée Cm et le coefficient dissipatif Cd. Ces coefficients représentent les effets inertiels et dissipatifs du fluide sans avoir à décrire explicitement les écoulements à l'échelle locale.
Book Synopsis CONTRIBUTION A L'ETUDE DES VIBRATIONS DE FAISCEAUX DE TUBES EN ECOULEMENT TRANSVERSAL by : JOSE.. ANTUNES
Download or read book CONTRIBUTION A L'ETUDE DES VIBRATIONS DE FAISCEAUX DE TUBES EN ECOULEMENT TRANSVERSAL written by JOSE.. ANTUNES and published by . This book was released on 1986 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: ANALYSES DYNAMIQUES NON-LINEAIRES POUR LA PREDICTION DES RISQUES VIBRATOIRES ET D'USURE DES FAISCEAUX DE TUBES, ET TENANT COMPTE DU FAIT QUE LES APPUIS PRESENTENT DES VARIATIONS PAR RAPPORT AUX CONDITIONS NOMINALES. METHODOLOGIE PERMETTANT L'ANALYSE GLOBALE DU COMPORTEMENT DYNAMIQUE NON-LINEAIRE DES TUBES. SIMULATION DES SOURCES D'EXCITATION PAR L'ECOULEMENT. APPLICATION AUX CENTRALES NUCLEAIRES
Book Synopsis CONTRIBUTION A L'ETUDE DES VIBRATIONS ET DE L'USURE DES FAISCEAUX DE TUBES EN ECOULEMENT TRANSVERSAL by : BERTRAND.. BEAUFILS
Download or read book CONTRIBUTION A L'ETUDE DES VIBRATIONS ET DE L'USURE DES FAISCEAUX DE TUBES EN ECOULEMENT TRANSVERSAL written by BERTRAND.. BEAUFILS and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CE MEMOIRE, ON ETUDIE LES VIBRATIONS ET L'USURE DES TUBES D'ECHANGEURS DE CHALEUR IMPACTANT SUR LEURS SUPPORTS A JEUX, SOUS EXCITATION PAR LES ECOULEMENTS TRANSVERSES. ON S'INTERESSE D'UNE PART A LA MODELISATION DES FORCES EXERCEES PAR L'ECOULEMENT SUR LES TUBES: 1) EXCITATION PAR LA TURBULENCE; 2) FORCES FLUIDE-ELASTIQUES. D'AUTRE PART, ON ETUDIE LE FROTTEMENT SEC QUI INTERVIENT DANS LES IMPACTS DES TUBES SUR LEURS SUPPORTS. LES MODELISATIONS QUI DECOULENT DE CES ETUDES SONT INTRODUITES DANS UN CODE DE CALCUL A PORTEE INDUSTRIELLE. DIFFERENTES ETUDES PARAMETRIQUES SONT PRESENTEES, AINSI QU'UNE VALIDATION DE LA METHODOLOGIE PAR L'EXPERIENCE
Book Synopsis Proceedings of the ASME Pressure Vessels and Piping Conference--2006: Fluid-structure interaction by :
Download or read book Proceedings of the ASME Pressure Vessels and Piping Conference--2006: Fluid-structure interaction written by and published by . This book was released on 2007 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation numérique par la méthode des éléments spectraux des vibrations induites par relâcher tourbillonnaire by : Adrien Moulin
Download or read book Simulation numérique par la méthode des éléments spectraux des vibrations induites par relâcher tourbillonnaire written by Adrien Moulin and published by . This book was released on 2016 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis SIMULATION NUMERIQUE DES ECOULEMENTS PULSES INSTATIONNAIRES DANS LES CONDUITES AVEC SINGULARITE DE SECTION by : CHABNAM.. ESFANDIARI
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
Book Synopsis Flow-induced Vibration by : Robert D. Blevins
Download or read book Flow-induced Vibration written by Robert D. Blevins and published by . This book was released on 2001-01-01 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on applications for offshore platforms and piping; and, wind-induced vibration of buildings, bridges, and towers. This title also focuses on acoustic and mechanical vibration of heat exchangers, power lines, and process ducting.
Book Synopsis The Theory of Propellers by : Theodore Theodorsen
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 Satellite Situation Report written by and published by . This book was released on 1978-06-30 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of UO2 written by J. Belle and published by . This book was released on 1957 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mechanical Vibration and Shock Analysis, Sinusoidal Vibration by : Christian Lalanne
Download or read book Mechanical Vibration and Shock Analysis, Sinusoidal Vibration written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 1: Sinusoidal Vibration The relative and absolute response of a mechanical system with a single degree of freedom is considered for arbitrary excitation, and its transfer function defined in various forms. The characteristics of sinusoidal vibration are examined in the context both of the real world and of laboratory tests, and for both transient and steady state response of the single-degree-of-freedom system. Viscous damping and then nonlinear damping are considered. The various types of swept sine perturbations and their properties are described and, for the one-degree-of-freedom system, the consequence of an inappropriate choice of sweep rate are considered. From the latter, rules governing the choice of suitable sweep rates are developed. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
Author :International Atomic Energy Agency Publisher :International Atomic Energy Agency ISBN 13 :9789201063205 Total Pages :72 pages Book Rating :4.0/5 (632 download)
Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency
Download or read book In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka
Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Download or read book Fatigue Damage written by Christi Lalanne and published by CRC Press. This book was released on 2002-03-29 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: About the Series: This important new series of five volumes has been written with both the professional engineers and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and crucially important areas of mechanical engineering, from both the theoretical and practical standpoints. As all products need to be designed to withstand the environmental conditions to which they are likely to be subjected, prototypes must be verified by calculation and laboratory tests, the latter according to specifications from national or international standards. The concept of tailoring the product to its environment has gradually developed whereby, from the very start of a design project, through the to the standards specifications and testing procedures on th e prototype, the real environment in which the product being tested will be functioning is taken into account. The five volumes of Mechanical Shock and Vibration cover all the issues that need to be addressed in this area of mechanical engineering. The theoretical analyses are placed in the context of the real world and of laboratory tests - essential for the development of specifications. Volume IV: Fatigue Damage Fatigue damage in a system with one degree of freedom is one of the two criteria applied when comparing the severity of vibratory environments. The same criterion is also employed for a specifciation representing the effects produced by the set of vibrations imposed in a real environment. In this volume, which is devoted to the calculation of fatigue damage, the author explores the hypotheses adopted to describe the behavior of material suffering fatigue and the laws of fatigue accumulation. He also considers the methods of counting the response peaks, which are used to establish the histogram when it is impossible to use the probability density of the peaks obtained with a Gaussian signal. The expressions for mean damage and its standard deviation are established and other hypotheses are tested.
Download or read book Space Debris written by Heiner Klinkrad and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.
