Download or read book Etude et mod lisation d coulements turbulents de m taux liquides written by Vincent Pimont and published by . This book was released on 1983 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Etude des équations d'un écoulement turbulent avec transfert de chaleur. Structure d'un écoulement turbulent non isotherme de métal liquide. Modélisation des équations de transport des moments lies a la fluctuation de température. Modélisation des équations de transport de U X U, K et E A grand nombre de Reynolds. Application du modèle à l'étude de la zone de paroi d'un écoulement turbulent non isotherme de métal liquide

Download or read book coulement d un fluide seuil dans une conduite avec singularit written by Kamel Berkache and published by Editions Universitaires Europeennes. This book was released on 2015-09-11 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les fluides viscoplastiques ou a contrainte seuil, constituent une classe de materiaux aux proprietes specifiques qui leurs conferent d'innombrables applications. Plusieurs domaines font intervenir ces fluides, parmi lesquels, on peut citer l'agroalimentaire, l'industrie pharmaceutique, la cosmetique...etc. Le probleme de l'ecoulement de ces fluides, dans des conduites a geometrie complexes, represente un sujet qui interesse les physiciens et les physiologistes. La prise en consideration de la deformabilite des conduites ainsi que la nature du fluide sont souvent indispensables pour comprendre et resoudre certains problemes de la mecanique et parfois de la medecine. Dans le domaine medicale, la circulation sanguine presente un domaine de recherche tres vaste. La presente etude a pour but la modelisation experimentale des ecoulements stationnaires d'un fluide a contrainte seuil a travers une singularite vasculaire (la stenose). Nous avons caracterise l'ecoulement isotherme en analysant les profiles de vitesses et de leurs taux de turbulence. Nous avons etudie, en particulier, l'influence de la forme de la stenose sur les profiles de vitesses et les pertes de charge generees."

Download or read book Simulation d coulements instationnaires dominante p riodique application aux sillages laminaires et turbulents written by Gilles Carte and published by . This book was released on 1994 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA PRESENTE ETUDE A POUR ORIGINE LES PROBLEMES DE TENUE EN FATIGUE DE CERTAINS ECHANGEURS THERMIQUES. NOUS NOUS PROPOSONS D'ABORDER LE PROBLEME SIMPLIFIE DES ECOULEMENTS ISOTHERMES LAMINAIRES ET TURBULENTS D'UN FLUIDE VISQUEUX ET INCOMPRESSIBLE AUTOUR DE CYLINDRES. UN CODE DE SIMULATION NUMERIQUE (DENOMME OCEANE) BASE SUR LA RESOLUTION DES EQUATIONS DE LA MECANIQUE DES FLUIDES EST ELABORE. SA FORMULATION RETIENT UNE DISCRETISATION SPATIALE EN VOLUMES FINIS EN VARIABLES PRIMITIVES ENTRELACEES ET UN SCHEMA TEMPOREL PREDICTEUR-CORRECTEUR. APRES VALIDATION, CE CODE EST APPLIQUE A L'ETUDE DE L'INFLUENCE DU NOMBRE DE L'INFLUENCE DU NOMBRE DE REYNOLDS (COMPRIS ENTRE 66 ET 300) SUR LA STRUCTURE DE L'ECOULEMENT AUTOUR D'UN CYLINDRE CIRCULAIRE CONFINE DANS UN CANAL. LA MODELISATION DE LA TURBULENCE EST ABORDEE PAR DES MODELES LINEAIRES ET NON LINEAIRES DE TYPE K-EPSILON AVEC UN CODE (FLORIDE) EN VARIABLES NON ENTRELACEES (CALCUL DES FLUX SUIVANT LA METHODE DE RHIE). FINALEMENT, UNE NOUVELLE METHODE DE CALCUL BASEE SUR UNE SEPARATION DES ECHELLES DE TEMPS RAPIDE ET LONGUE EST DEVELOPPEE. LES ECHELLES RAPIDES CORRESPONDANT AUX VARIATIONS PERIODIQUES SONT DECRITES EN SERIE DE FOURIER, LES ECHELLES LENTES PAR UNE METHODE D'INTEGRATION PAS A PAS. LE CODE (SPITFIRE) CONSTRUIT SUR CE PRINCIPE EST APPLIQUE A L'ETUDE DE L'INSTABILITE DE BENARD VON KARMAN DANS LE SILLAGE D'UN CORPS

Download or read book Contribution l tude de la turbulence dans la phase liquide des coulements bulles written by Michel Lance and published by . This book was released on 1979 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE EXPERIMENTALE D'UN ECOULEMENT UNIFORME COCOURANT VERTICAL ASCENDANT. INFLUENCE DE L'INJECTION D'UN RESEAU DE BULLES SUR LA TURBULENCE UNIFORME ENGENDREE PAR UNE GRILLE DANS UN CANAL HYDRODYNAMIQUE. RESULTATS PRELIMINAIRES CONCERNANT: INTENSITE TURBULENTE, COEFFICIENTS DE DISSYMETRIE ET D'APLATISSEMENT EN FONCTION DU TAUX DE VIDE ET DE LA VITESSE MOYENNE DU LIQUIDE, INFLUENCE DU DIAMETRE DES INJECTEURS ET SPECTRES. ETABLISSEMENT, A PARTIR DES EQUATIONS DES ECOULEMENTS DIPHASIQUES, DE L'ENSEMBLE DES EQUATIONS REGISSANT POUR CHAQUE PHASE DES GRANDEURS TURBULENTES: FLUCTUATIONS DE VITESSE, DE PRESSION, TENSEUR DE REYNOLDS, DISSIPATION

Download or read book Fracture Fatigue and Advanced Mechanics written by and published by . This book was released on 1985 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 1985 Pressure Vessels and Piping Conference Fracture fatigue and advanced mechanics written by and published by . This book was released on 1985 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.).

Download or read book Finite Volumes for Complex Applications IX Methods Theoretical Aspects Examples written by Robert Klöfkorn and published by Springer Nature. This book was released on 2020-06-09 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the 9th conference on "Finite Volumes for Complex Applications" (Bergen, June 2020) are structured in two volumes. The first volume collects the focused invited papers, as well as the reviewed contributions from internationally leading researchers in the field of analysis of finite volume and related methods. Topics covered include convergence and stability analysis, as well as investigations of these methods from the point of view of compatibility with physical principles. Altogether, a rather comprehensive overview is given on the state of the art in the field. The properties of the methods considered in the conference give them distinguished advantages for a number of applications. These include fluid dynamics, magnetohydrodynamics, structural analysis, nuclear physics, semiconductor theory, carbon capture utilization and storage, geothermal energy and further topics. The second volume covers reviewed contributions reporting successful applications of finite volume and related methods in these fields. The finite volume method in its various forms is a space discretization technique for partial differential equations based on the fundamental physical principle of conservation. Many finite volume methods preserve further qualitative or asymptotic properties, including maximum principles, dissipativity, monotone decay of free energy, and asymptotic stability, making the finite volume methods compatible discretization methods, which preserve qualitative properties of continuous problems at the discrete level. This structural approach to the discretization of partial differential equations becomes particularly important for multiphysics and multiscale applications. The book is a valuable resource for researchers, PhD and master’s level students in numerical analysis, scientific computing and related fields such as partial differential equations, as well as engineers working in numerical modeling and simulations.

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.

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:

Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.

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.

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 Solid Propellant Rocket Research written by Martin Summerfield and published by Elsevier. This book was released on 2013-11-11 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid Propellant Rocket Research

Download or read book Bulletin de L Institut International Du Froid written by and published by . This book was released on 2009 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Terra 2008 written by Leslie Rainer and published by Getty Publications. This book was released on 2011-06-14 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Download or read book Gas cooled Nuclear Reactors written by France. Commissariat à l'énergie atomique and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: