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Etude Numerique Dun Ecoulement De Convection Mixte Engendre Par Un Jet En Espace Confine
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Book Synopsis ETUDE NUMERIQUE D'UN ECOULEMENT DE CONVECTION MIXTE ENGENDRE PAR UN JET EN ESPACE CONFINE by : Christophe Brun
Download or read book ETUDE NUMERIQUE D'UN ECOULEMENT DE CONVECTION MIXTE ENGENDRE PAR UN JET EN ESPACE CONFINE written by Christophe Brun and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL A PORTE SUR L'ETUDE DES ECOULEMENTS DE CONVECTION MIXTE ENGENDRE PAR UN JET NON ISOTHERME EN ESPACE CONFINE. IL S'INSCRIT PARMI LES TRAVAUX CONCERNANT LA CONNAISSANCE DE LA CIRCULATION DE L'AIR ET DES TRANSFERTS DE CHALEUR DANS L'HABITAT, CONDITIONNE PAR UN SYSTEME DE CHAUFFAGE OU DE VENTILATION. UN OUTIL NUMERIQUE DE TYPE VOLUMES FINIS A ETE ADAPTE A CES CONFIGURATIONS D'ECOULEMENT DE CONVECTION MIXTE, EN REGIME LAMINAIRE, TURBULENT (K), 2D ET 3D. UNE ETUDE PARAMETRIQUE A MIS EN EVIDENCE DES RESULTATS TOUT A FAIT ORIGINAUX CONCERNANT UN CHANGEMENT BRUTAL DE LA STRUCTURE DE L'ECOULEMENT, CARACTERISE PAR UN NOMBRE DE RICHARDSON CRITIQUE. CETTE VALEUR CRITIQUE EVOLUE EN FONCTION DU NOMBRE DE REYNOLDS ET SELON LA VALEUR DES RAPPORTS DES GRANDEURS GEOMETRIQUES. UNE APPROCHE DES ECOULEMENTS REELS A MONTRE LES PERSPECTIVES D'EXPLOITATION DE CE CODE DE CALCUL, PARTICULIEREMENT INTERESSANTES DANS LE CAS D'ETUDES PARAMETRIQUES A CARACTERE SEMI-QUANTITATIF
Book Synopsis Etude numérique de la convection mixte turbulente en milieu confiné by : CORINA.. NICULAE
Download or read book Etude numérique de la convection mixte turbulente en milieu confiné written by CORINA.. NICULAE and published by . This book was released on 1993 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE TRAVAIL PRESENTE PORTE SUR LA MODELISATION NUMERIQUE LOCALE DES ECOULEMENTS TURBULENTS DE CONVECTION MIXTE EN MILIEU CONFINE. L'OUTIL NUMERIQUE EMPLOYE EST DE TYPE VOLUMES FINIS, 2D, BASE SUR L'ALGORITHME SIMPLE. DANS UNE PREMIERE PARTIE NOUS AVONS MENE UNE ETUDE DE VALIDATION DE PLUSIEURS MODELES DE TURBULENCE K- A BAS ET HAUT NOMBRE DE REYNOLDS, EN PRENANT COMME REFERENCE DES RESULTATS EXPERIMENTAUX OBTENUS AU LABORATOIRE, DANS LE CAS D'ECOULEMENTS DE CONVECTION MIXTE GENERES PAR DES JETS DE PAROI ET DE PAROI CHAUFFANTE. LES RESULTATS DE CETTE ETUDE ONT MONTRE LA GRANDE SENSIBILITE DES MODELES K- EN CE QUI CONCERNE L'EVALUATION DES TRANSFERTS THERMIQUES PARIETAUX. L'IMPORTANCE DE CE FAIT A ETE SOULIGNEE EGALEMENT A TRAVERS L'APPROCHE EN REGIME STATIONNAIRE D'UN PHENOMENE D'HYSTERESIS MIS EN EVIDENCE EXPERIMENTALEMENT. LA SECONDE PARTIE DE L'ETUDE A CONSISTE DANS LA MODELISATION DE LA CONVECTION MIXTE THERMO-SOLUTALE ENGENDREE PAR LE PROCESSUS DE TRANSPORT-DIFFUSION DE POLLUANTS DANS UN HALL INDUSTRIEL. LA CONFIGURATION SE CARACTERISE PAR L'ABSENCE DES ECHANGES THERMIQUES ET MASSIQUES PARIETAUX. LE MODELE DE TURBULENCE UTILISE A ETE CHOISI SUITE A L'ETUDE EXPOSEE DANS LA PREMIERE PARTIE. NOUS AVONS ANALYSE L'INFLUENCE SUR LA STRUCTURE DES ECOULEMENTS DES FACTEURS TELS QUE L'INTENSITE DU COUPLAGE DES EFFETS D'INERTIE ET GRAVITATIONNELS, LA NATURE DU POLLUANT ET LE REGIME DYNAMIQUE DE CALCUL. CETTE ETUDE A MONTRE LE ROLE IMPORTANT DE L'ABSENCE DES ECHANGES PARIETAUX SUR LE COMPORTEMENT RELAMINARISANT DE DEUX MODELES K- A BAS REYNOLDS. D'UN POINT DE VUE PLUS PRATIQUE NOUS AVONS OBTENU DES INFORMATIONS INTERESSANTES CONCERNANT L'EFFICACITE DE PROCESSUS DE DEPOLLUTION EN AMBIANCE INDUSTRIELLE. L'ENSEMBLE DES RESULTATS NOUS ONT APPORTE DES DETAILS PRECIEUX CONCERNANT LES PERFORMANCES DE LA MODELISATION K- POUR DIVERSES CONFIGURATIONS DE CONVECTION MIXTE. ILS NOUS ONT INDIQUE EN MEME TEMPS DES NOUVELLES VOIES A SUIVRE DANS L'APPROCHE DE LA TURBULENCE
Book Synopsis Étude numérique d'écoulements turbulents à l'aide de la simulation des grandes structures by : Ridouane Ezzouhri
Download or read book Étude numérique d'écoulements turbulents à l'aide de la simulation des grandes structures written by Ridouane Ezzouhri and published by . This book was released on 2007 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: La Simulation des Grandes Structures (SGS) a été étudiée lors de cette thèse. L’objectif de ce travail numérique consistait à tester la capacité de quelques modèles de sous-maille et plus particulièrement ceux associés aux approches dynamiques souvent utilisées dans la littérature, à reproduire, d'abord les écoulements de convection naturelle en espaces confinés, avant de passer à des situations plus réalistes faisant appel à des écoulements de type jet en convection forcée ou mixte dans des espaces ventilés, susceptibles d’être rencontrés dans le domaine de l’habitat. En convection naturelle dans une cavité fermée anisotherme, la SGS a permis de reproduire correctement les résultats numériques de référence d’une Simulation Numérique Directe 2D et les comparaisons ont été encore plus proches en 3D. En convection forcée dans une cavité ventilée isotherme équipée d’un soufflage et extraction d’écoulement, la SGS 3D a permis de bien reproduire les résultats expérimentaux de l’Annexe20 de l’Agence Internationale de l’Energie. Les résultats ont été encore améliorés par l’introduction d’une perturbation du jet au soufflage pour modéliser l’intensité turbulente mesurée expérimentalement. En convection mixte dans une cavité ventilée anisotherme équipée d’un soufflage et extraction d’écoulement, avec un plancher chauffé, la SGS 3D montre un très bon accord avec une expérience réalisée au Laboratoire d'Etudes thermiques à Poitiers et reproduit également le comportement singulier de l’écoulement (bifurcation et changement de direction avec phénomène d’hystérésis) détecté expérimentalement. À notre connaissance, aucune étude numérique n’a permis jusqu’à présent une telle comparaison.
Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis A Parallel Finite Volume Algorithm for Large-eddy Simulation of Turbulent Flows by : Trong T. Bui
Download or read book A Parallel Finite Volume Algorithm for Large-eddy Simulation of Turbulent Flows written by Trong T. Bui and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Hydrology of Mediterranean and Semiarid Regions by : Eric Servat
Download or read book Hydrology of Mediterranean and Semiarid Regions written by Eric Servat and published by . This book was released on 2003 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Generalized Feynman Amplitudes. (AM-62), Volume 62 by : Eugene R. Speer
Download or read book Generalized Feynman Amplitudes. (AM-62), Volume 62 written by Eugene R. Speer and published by Princeton University Press. This book was released on 2016-03-02 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a valuable discussion of renormalization through the addition of counterterms to the Lagrangian, giving the first complete proof of the cancellation of all divergences in an arbitrary interaction. The author also introduces a new method of renormalizing an arbitrary Feynman amplitude, a method that is simpler than previous approaches and can be used to study the renormalized perturbation series in quantum field theory.
Book Synopsis Relativistic Hydrodynamics and Magnetohydrodynamics by : André Lichnerowicz
Download or read book Relativistic Hydrodynamics and Magnetohydrodynamics written by André Lichnerowicz and published by . This book was released on 1967 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biodiversity and Sustainable Development by : Rabindra Nath Pati
Download or read book Biodiversity and Sustainable Development written by Rabindra Nath Pati and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at the First Global Summit on Sustainable Development and Biodiversity, held at Raipur during 7-9 February 2009.
Book Synopsis Fundamentals of Latex Film Formation by : Joseph Keddie
Download or read book Fundamentals of Latex Film Formation written by Joseph Keddie and published by Springer Science & Business Media. This book was released on 2010-02-18 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has emerged out of our long-time research interests on the topic of latex film formation. Over the years we have built up a repertoire of slides used in conference presentations, short courses and tutorials on the topic. The story presented in this book has thereby taken shape as it has been told and re-told to a mix of academic and industrial audiences. The book presents a wide body of work accumulated by the polymer colloids community over the past five decades, but the selection of examples has been flavoured by our particular experimental interests and development of mathematical models. We intend the book to be a starting point for academic and industrial scientists beginning research on latex film formation. The emphasis is on fundam- tal mechanisms, however, and not on applications nor on specific effects of formu- tions. We hope that the book consolidates the understanding that has been achieved to-date in the literature in a more comprehensive way than is possible in a review article. We trust that the reader will appreciate the fascination of the topic.
Book Synopsis Cellular Automata Modeling of Physical Systems by : Bastien Chopard
Download or read book Cellular Automata Modeling of Physical Systems written by Bastien Chopard and published by Cambridge University Press. This book was released on 2005-06-30 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a self-contained introduction to cellular automata and lattice Boltzmann techniques. Beginning with a chapter introducing the basic concepts of this developing field, a second chapter describes methods used in cellular automata modeling. Following chapters discuss the statistical mechanics of lattice gases, diffusion phenomena, reaction-diffusion processes and non-equilibrium phase transitions. A final chapter looks at other models and applications, such as wave propagation and multiparticle fluids. With a pedagogic approach, the volume focuses on the use of cellular automata in the framework of equilibrium and non-equilibrium statistical physics. It also emphasises application-oriented problems such as fluid dynamics and pattern formation. The book contains many examples and problems. A glossary and a detailed bibliography are also included. This will be a valuable book for graduate students and researchers working in statistical physics, solid state physics, chemical physics and computer science.
Book Synopsis Tomita's Theory of Modular Hilbert Algebras and its Applications by : M. Takesaki
Download or read book Tomita's Theory of Modular Hilbert Algebras and its Applications written by M. Takesaki and published by Springer. This book was released on 2006-11-15 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium Publisher : ISBN 13 : Total Pages :344 pages Book Rating :4.E/5 ( download)
Book Synopsis Aircraft Fire Safety by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium
Download or read book Aircraft Fire Safety written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Propulsion and Energetics Panel. Symposium and published by . This book was released on 1997 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Auxiliary power systems: papers presented at the Propulsion and Energetics Panel 61st (B) specialists' meeting, held in Copenhagen, Denmark, 30-31 May 1983 by : AGARD.
Download or read book Auxiliary power systems: papers presented at the Propulsion and Energetics Panel 61st (B) specialists' meeting, held in Copenhagen, Denmark, 30-31 May 1983 written by AGARD. and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physical Properties of Amorphous Materials by : David Adler
Download or read book Physical Properties of Amorphous Materials written by David Adler and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.
Book Synopsis The Hydrology of the Nile by : John V. Sutcliffe
Download or read book The Hydrology of the Nile written by John V. Sutcliffe and published by . This book was released on 1999 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Its scope can be seen from the list of contents overleaf.
