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Author : M'Hamed Bannour
Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (491 download)
Download or read book Contribution à l'étude de l'impact normal d'un jet liquide bidimensionnel sur un plan written by M'Hamed Bannour and published by . This book was released on 1987 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M'Hamed Bannour
Publisher :
ISBN 13 :
Total Pages : 145 pages
Book Rating : 4.:/5 (49 download)
Download or read book CONTRIBUTION A L'ETUDE DE L'IMPACT NORMAL D'UN JET LIQUIDE BIDIMENTIONNEL SUR UN PLAN written by M'Hamed Bannour and published by . This book was released on 1987 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON SUPPOSE L'ECOULEMENT LAMINAIRE ET LE PROFIL INITIAL DE VITESSE UNIFORME. ON OBTIENT LA SOLUTION EN FLUIDE PARFAIT PAR TRANSFORMATION CONFORME DANS LE PLAN DE L'HODOGRAPHE. LES EQUATIONS DE LA COUCHE LIMITE SONT INTEGREES SUIVANT UN SCHEMA AUX DIFFERENCES FINIES. DETERMINATION DES PROFILS DE VITESSE, DE PRESSION ET DE FROTTEMENT SUR LA PAROI. ETUDE DU TRANSFERT PAR DIFFUSION CONVECTIVE D'UN SOLUTE SUR UNE SURFACE ACTIVE PARIETALE. VERIFICATION EXPERIMENTALE DES RESULTATS THEORIQUES PAR MESURE DU FLUX LIMITE DE DIFFUSION DU REACTIF PAR LA METHODE POLAROGRAPHIQUE
Author : Mokrane Bouainouche
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (49 download)
Download or read book Etude de l'interaction entre un jet plan à grande vitesse et un film liquide written by Mokrane Bouainouche and published by . This book was released on 1995 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: La première partie de l'étude s'intéresse à la modélisation de l'impact d'un jet de gaz plan et mince sur une paroi plane en vue d'en déduire les distributions de pression et de contrainte de cisaillement sur la paroi. Dans la deuxième partie, ces résultats sont utilisés pour étudier le comportement d'un film liquide visqueux entraîné par le déplacement vertical d'une bande et soumis à l'action d'un jet. Les actions du jet sur la surface sont déterminées par un calcul numérique en utilisant un schéma de type volume fini. L’écoulement d'un jet bidimensionnel, turbulent et compressible sur une plaque plane est modélisé en utilisant le modèle de turbulence k- avec des fonctions de paroi. Pour réduire l'influence du maillage près de la paroi sur le calcul de la contrainte de cisaillement pariétale, une loi de paroi hybride est proposée en utilisant simultanément la loi de paroi logarithmique et sa forme généralisée. Les distributions de pression et de contrainte de cisaillement sont calculées et validées par des mesures expérimentales. L’équation du mouvement du film liquide est écrite en considérant le terme d'accélération, négligé dans les études précédentes. Le modèle est appliqué a un processus de galvanisation et validé par des résultats expérimentaux obtenus dans des conditions diverses
Author : Thi Kim Dung Hoang
Publisher :
ISBN 13 :
Total Pages : 203 pages
Book Rating : 4.:/5 (495 download)
Download or read book Etude du refroidissement d' une paroi concave par l' impact d'un jet bidimensionnel written by Thi Kim Dung Hoang and published by . This book was released on 2009 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'impact de jets est largement utilisé aujourd'hui dans l'industrie car ils génèrent d'importants transferts de chaleur et/ou de masse. Pour le refroidissement de la surface interne d'une aube de turbine, dans la région à mi-corde, la courbure est si faible que l'on peut, en première approximation, considérer que les jets frappent une paroi plane. Cette hypothèse n'est plus vraie au bord d'attaque où les jets viennent frapper une plaque courbe concave. Malheureusement très peu d'études concernent l'impact de jets sur des parois courbes (une quinzaine au plus, en 30 ans). Pour aborder cette problématique nous avons entrepris, dans ce travail, l'étude aérothermique d'impact d’un jet plan sur une paroi concave. Les résultats indiquent pour certaines configurations qu'il existe un phénomène instationnaire instable : un battement du jet qui se caractérise par une légère oscillation du jet autour de trois positions semi-stables. Cet écoulement est analysé à partir des champs moyens de vitesse et des valeurs turbulentes obtenues par Vélocimétrie par Imagerie de Particules (PIV). Les transferts de chaleur sur la paroi d'impact sont déterminés à partir des mesures de température par thermographie infrarouge. Ce battement du jet entraîne une modification très importante de la structure de l'écoulement et du transfert de chaleur qui sont très différents de ceux observés, dans la littérature, pour le cas d'un impact de jet classique. Dans l'optique d'utiliser ce type de phénomène pour l'optimisation du refroidissement d’une paroi concave, nous nous sommes intéressés à l'influence des conditions aux limites (tabs en entrée ou obturateur en sortie) et des principaux paramètres géométriques et dynamiques (hauteur d’impact, nombre de Reynolds,...).
Author : Fabien Anselmet
Publisher : John Wiley & Sons
ISBN 13 : 1119178398
Total Pages : 529 pages
Book Rating : 4.1/5 (191 download)
Download or read book Acoustics, Aeroacoustics and Vibrations written by Fabien Anselmet and published by John Wiley & Sons. This book was released on 2016-01-07 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This didactic book presents the main elements of acoustics, aeroacoustics and vibrations. Illustrated with numerous concrete examples linked to solid and fluid continua, Acoustics, Aeroacoustics and Vibrations proposes a selection of applications encountered in the three fields, whether in room acoustics, transport, energy production systems or environmental problems. Theoretical approaches enable us to analyze the different processes in play. Typical results, mostly from numerical simulations, are used to illustrate the main phenomena (fluid acoustics, radiation, diffraction, vibroacoustics, etc.).
Author : Philippe Gourbesville
Publisher : Springer
ISBN 13 : 9812876154
Total Pages : 616 pages
Book Rating : 4.8/5 (128 download)
Download or read book Advances in Hydroinformatics written by Philippe Gourbesville and published by Springer. This book was released on 2015-08-21 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of extended papers based on presentations given during the SIMHYDRO 2014 conference, held in Sophia Antipolis in June 2014. It focuses on the modeling and simulation of fast hydraulic transients, on 3D modeling, and on uncertainties and multiphase flows. The book explores both the limitations and performance of current models and presents the latest developments based on new numerical schemes, high-performance computing, multiphysics and multiscale methods, and better interaction with field or scale model data. It addresses the interests of practitioners, stakeholders, researchers and engineers active in this field.
Author : T. Sera
Publisher : Springer Science & Business Media
ISBN 13 : 9401710686
Total Pages : 535 pages
Book Rating : 4.4/5 (17 download)
Download or read book Coffee Biotechnology and Quality written by T. Sera and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coffee Biotechnology and Quality is a comprehensive volume containing 45 specialised chapters by internationally recognised experts. The book aims to provide a guide for those wishing to learn about recent advances in coffee cultivation and post-harvest technology. It provides a quantitative and rational approach to the major areas of coffee research, including breeding and cloning, tissue culture and genetics, pest control, post-harvest technology and bioconversion of coffee industry residues into commercially valuable products. The chapters review recent experimental work, allowing a conceptual framework for future research to be identified and developed. The book will be of interest to researchers and students involved in any area of coffee research. Consequently, plant breeders, microbiologists, biotechnologists and biochemical engineers will find the book to be a unique and invaluable guide.
Author : J.J. Lielpeteris
Publisher : Springer Science & Business Media
ISBN 13 : 9400909993
Total Pages : 454 pages
Book Rating : 4.4/5 (9 download)
Download or read book Liquid Metal Magnetohydrodynamics written by J.J. Lielpeteris and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid metal MHO is within the scope of two series of international conferences. One is the International Congress on "MHD Power Generation", held every four years, which includes technical and economical aspects as well as scientific questions. The other if the Beer-Sheva Seminar on "MHO Flows and Turbulence", held every three years in Israel. In addition to these well established meetings, an IUTAM Symposium was previously organized in Cambridge (UK) in 1982 on "Metallurgical Applications of MHD" by the late Arthur Shercliff. It was focussed on a very specific subject developing radiply from the middle of the 1970's. The magnetic field was generally AC, including frequencies high enough for the skin-depth to be much smaller than the typical length scale of the liquide pool. And the development of new technologies, or the improvement of existing ones, was the main justification of most of the researches presented and discussed. Only two participants from Eastern countries attended this Symposium. By the middle of the 1980's we felt that on this very same topic ideas had reached much more maturity than in 1982. We also realized that a line of research on MHD flows related to fusion reactors (tokamaks) was developing significantly, with particular emphasis on flows at large interaction parameter.
Author : Uriel Frisch
Publisher : Springer Science & Business Media
ISBN 13 : 9401151180
Total Pages : 630 pages
Book Rating : 4.4/5 (11 download)
Download or read book Advances in Turbulence VII written by Uriel Frisch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Turbulence VII contains an overview of the state of turbulence research with some bias towards work done in Europe. It represents an almost complete collection of the invited and contributed papers delivered at the Seventh European Turbulence Conference, sponsored by EUROMECH and ERCOFTAC and organized by the Observatoire de la Côte d'Azur. New high-Reynolds number experiments combined with new techniques of imaging, non-intrusive probing, processing and simulation provide high-quality data which put significant constraints on possible theories. For the first time, it has been shown, for a class of passive scalar problems, why dimensional analysis sometimes gives the wrong answers and how anomalous intermittency corrections can be calculated from first principles. The volume is thus geared towards specialists in the area of flow turbulence who could not attend the conference as well as anybody interested in this rapidly moving field.
Author : José Simão Antunes Do Carmo
Publisher : BoD – Books on Demand
ISBN 13 : 1789843596
Total Pages : 138 pages
Book Rating : 4.7/5 (898 download)
Download or read book Coastal and Marine Environments written by José Simão Antunes Do Carmo and published by BoD – Books on Demand. This book was released on 2020-01-22 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematizes the concepts of contemporary coastal zone management and suggests possible structural and non-structural management tools for decision-making processes. Some successful adaptation measures and case studies on oceanic processes and coastal protection are discussed. High-frequency communications in coastal and marine environments are also addressed.All chapters contribute relevant information and useful content to scientists and other readers interested or concerned about the lack of adequate management actions and the installation of appropriate protections or their ineffectiveness in containing coastal vulnerabilities and risks.
Author : Jean-Louis Barrat
Publisher : Cambridge University Press
ISBN 13 : 9780521789530
Total Pages : 410 pages
Book Rating : 4.7/5 (895 download)
Download or read book Basic Concepts for Simple and Complex Liquids written by Jean-Louis Barrat and published by Cambridge University Press. This book was released on 2003-03-27 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a unified approach, this book focusses on the concepts and theoretical methods that are necessary for an understanding of the physics and chemistry of the fluid state. The authors do not attempt to cover the whole field in an encyclopedic manner. Instead, important ideas are presented in a concise and rigorous style, and illustrated with examples from both simple molecular liquids and more complex soft condensed matter systems such as polymers, colloids, and liquid crystals.
Author : Uriel Frisch
Publisher : Cambridge University Press
ISBN 13 : 1139935976
Total Pages : 318 pages
Book Rating : 4.1/5 (399 download)
Download or read book Turbulence written by Uriel Frisch and published by Cambridge University Press. This book was released on 1995-11-30 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents a modern account of turbulence, one of the greatest challenges in physics. The state-of-the-art is put into historical perspective five centuries after the first studies of Leonardo and half a century after the first attempt by A. N. Kolmogorov to predict the properties of flow at very high Reynolds numbers. Such 'fully developed turbulence' is ubiquitous in both cosmical and natural environments, in engineering applications and in everyday life. The intended readership for the book ranges from first-year graduate students in mathematics, physics, astrophysics, geosciences and engineering, to professional scientists and engineers. Elementary presentations of dynamical systems ideas, of probabilistic methods (including the theory of large deviations) and of fractal geometry make this a self-contained textbook.
Author : Ahmed Belasri
Publisher : Springer Nature
ISBN 13 : 9811554447
Total Pages : 659 pages
Book Rating : 4.8/5 (115 download)
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.
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 546 pages
Book Rating : 4.3/5 (91 download)
Download or read book Precision Measurement and Fundamental Constants; Proceedings written by United States. National Bureau of Standards and published by . This book was released on 1971 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Newmark
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (779 download)
Download or read book A Textbook of Translation written by Peter Newmark and published by . This book was released on 1987 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Friedrich A. Kittler
Publisher : Stanford University Press
ISBN 13 : 9780804732338
Total Pages : 364 pages
Book Rating : 4.7/5 (323 download)
Download or read book Gramophone, Film, Typewriter written by Friedrich A. Kittler and published by Stanford University Press. This book was released on 1999 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: On history of communication
Author : C. den Ouden
Publisher : Springer Science & Business Media
ISBN 13 : 9400983026
Total Pages : 359 pages
Book Rating : 4.4/5 (9 download)
Download or read book Thermal Storage of Solar Energy written by C. den Ouden and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the International TNO-Symposium held in Amsterdam, The Netherlands, 5-6 November 1980 by the Netherlands Organization for Applied Scientific Research
