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Author: Lounès Tadrist
Publisher:
ISBN:
Category :
Languages : fr
Pages : 4
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Book Description
ETUDE DES PROCESSUS PHYSIQUES REGISSANT LE COMPORTEMENT D'UN JET LIQUIDE (EAU) ISSU D'UNE CANALISATION CYLINDRIQUE DANS UN AUTRE LIQUIDE NON MISCIBLE (DODECANE). APPLICATION AUX ECHANGEURS A CONTACT DIRECT AVEC CHANGEMENT DE PHASES LIQUIDE/SOLIDE ET LIQUIDE/VAPEUR; ETUDE D'UN PROTOTYPE; MODELISATION DES TRANSFERTS DANS LA COLONNE D'ECHANGE; PERFORMANCES
Author: Lounès Tadrist
Publisher:
ISBN:
Category :
Languages : fr
Pages : 4
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Book Description
ETUDE DES PROCESSUS PHYSIQUES REGISSANT LE COMPORTEMENT D'UN JET LIQUIDE (EAU) ISSU D'UNE CANALISATION CYLINDRIQUE DANS UN AUTRE LIQUIDE NON MISCIBLE (DODECANE). APPLICATION AUX ECHANGEURS A CONTACT DIRECT AVEC CHANGEMENT DE PHASES LIQUIDE/SOLIDE ET LIQUIDE/VAPEUR; ETUDE D'UN PROTOTYPE; MODELISATION DES TRANSFERTS DANS LA COLONNE D'ECHANGE; PERFORMANCES
Author: Mama Chacha
Publisher:
ISBN:
Category :
Languages : fr
Pages : 528
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Book Description
LE MEMOIRE DE THESE PRESENTE UNE INVESTIGATION DES MECANISMES PHYSIQUES QUI REGISSENT L'ECOULEMENT D'UN JET DE LIQUIDE AXISYMETRIQUE DANS UNE PHASE CONTINUE NON MISCIBLE. APRES AVOIR DEFINI LES LIMITES DES TRAVAUX EXISTANTS, LE COMPORTEMENT SPATIO-TEMPOREL DE CES SYSTEMES EST ETUDIE AU MOYEN D'UNE SIMULATION NUMERIQUE DIRECTE. LE SYSTEME PHYSIQUE JET-PHASE CONTINUE EST CONFINE DANS UNE ENCEINTE COAXIALE RIGIDE. LE MODELE MATHEMATIQUE TRAITE DES JETS INFINIS ET DES JETS SEMI-INFINIS. CE MODELE PREND EN COMPTE L'ENSEMBLE DES PARAMETRES PHYSIQUES DU SYSTEME. L'APPROCHE NUMERIQUE ADOPTEE PERMET UNE GRANDE PRECISION ET FACILITE LE TRAITEMENT DE LA SURFACE DU JET. LE CODE DE CALCUL PERMET DE SUIVRE L'EVOLUTION DU SYSTEME ET DE CONNAITRE LA POSITION EXACTE DE L'INTERFACE DEPUIS L'INITIATION D'UNE PERTURBATION JUSQU'A LA RUPTURE EVENTUELLE DU JET EN GOUTTES. EN PRESENCE DE NONLINEARITES, LE CRITERE DE STABILITE DE RAYLEIGH-PLATEAU DEVIENT DEPENDANT DE L'AMPLITUDE INITIALE DE LA PERTURBATION ET LA DESINTEGRATION DU JET PRODUIT DES GOUTTES DE TAILLE DIFFERENTE. POUR LES SYSTEMES TYPIQUES ETUDIES, LES GOUTTES SECONDAIRES SONT OBTENUES POUR TOUS LES NOMBRES D'ONDE INSTABLE. L'INFLUENCE DES PROPRIETES PHYSIQUES ET DU CONFINEMENT SUR L'INSTABILITE ET LA RUPTURE DU JET EST MISE EN EVIDENCE. CE CODE DE CALCUL PEUT TRAITER UNE CLASSE ETENDUE DE PROBLEMES D'ECOULEMENT AVEC INTERFACES MOBILES.
Author: A. Serizawa
Publisher: Newnes
ISBN: 0444600124
Category : Technology & Engineering
Languages : en
Pages : 820
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Book Description
There is increasing world-wide interest in obtaining an understanding of various multiphase flow phenomena and problems in terms of a common language of multiphase flow. This volume contains state-of-the-art papers which have been contributed from all over the world by experts working on all aspects of multiphase flows. The volume also highlights international technology-sharing in the fields of energy, environment and public health, in order to create a brighter and sustainable future for man and for all life in the next century. It is intended that this volume will serve as a major source of literature for the advancement of multiphase flow and allied fields.
Author: Fabienne Girolami Castex (Mme)
Publisher:
ISBN:
Category :
Languages : fr
Pages : 300
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Book Description
ETUDE PAR DES METHODES OPTIQUES DE LA REPARTITION EN TAILLE DES GOUTTES AINSI QUE DES FREQUENCES DE VIBRATION DU SYSTEME. CARACTERISATION DES DIVERS REGIMES D'ECOULEMENT AINSI QUE DES TRANSITIONS. LA TRANSITION DU REGIME DE GOUTTE A GOUTTE AU JET LAMINAIRE S'EFFECTUE PAR COALESCENCE DE GOUTTES. IL EXISTE UN PHENOMENE D'HYSTERESIS AU NIVEAU DES LONGUEURS ET DES FREQUENCES. LE JET LAMINAIRE PRESENTE UNE STRUCTURATION DIFFERENTE DE PART ET D'AUTRE D'UN MAXIMUM SUR LA COURBE DES LONGUEURS. LE COMPORTEMENT DES FREQUENCES EST COMPARABLE A UNE TRANSITION VERS LE CHAOS DU TYPE "INSTABILITE CONVECTIVE". EN REGIME TURBULENT L'ETAT VIBRATOIRE DU JET EST INDUIT PAR LA TURBULENCE DANS L'INJECTEUR
Author: S. P. Lin
Publisher: Cambridge University Press
ISBN: 1139439782
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
This book, first published in 2003, is an exposition of what we knew about the physics underlying the onset of instability in liquid sheets and jets. Wave motion and breakup phenomena subsequent to the onset of instability are carefully explained. Physical concepts are established through rigorous mathematics, accurate numerical analyses and comparison of theory with experiment. Exercises are provided for students, and these help familiarize the reader with the required mathematical tools. This book further provides a rational basis for designing equipment and processes involving the phenomena of sheet and jet breakup. Researchers interested in transition to turbulence, hydrodynamic stability or combustion will find this book a highly useful resource, whether their background lies in engineering, physics, chemistry, biology, medicine or applied mathematics.
Author: Arthur Lefebvre
Publisher: CRC Press
ISBN: 9780891166030
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Atomization and Sprays examines the atomization of liquids and characteristics of sprays. It explains the physical processes of atomization as well as guidelines for designing atomizers. In addition, it demonstrates how the importance of the size and velocity of a particle contributes to improved spray characterization. Coverage includes general considerations, drop size distribution of sprays, flow in atomizers, atomizer performance, external spray characteristics, drop evaporation, and drop sizing methods.
Author:
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 1178
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Book Description
Author: Arthur H. Lefebvre
Publisher: CRC Press
ISBN: 1498736262
Category : Technology & Engineering
Languages : en
Pages : 284
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Book Description
The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Author: Annie Steinchen
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 288
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Book Description
Written for researchers and advanced students the book exhibits a combination of various methods and tools required to describe the complexity of the chemical and physical behaviour of fluid surfaces. The common denominator for all the contributions presented here is the simultaneous use of concepts from surface chemistry and physics and from hydrodynamics where external force fields can be introduced. Theoretical and experimental work is equally represented. Most of the basic problems in the area of nonequilibrium multiphase systems have not yet received extensive treatment. This volume should be a reference for physicists, physico-chemists, and chemical engineers and will serve as a jumping-off point for new directions and new points of view.
Author: A. A. Putnam
Publisher:
ISBN:
Category : Atomization
Languages : en
Pages : 1584
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Book Description
