Download or read book Effets de paroi pour l coulement non uniforme de fluides non newtoniens written by École polytechnique (Montréal, Québec). Département de génie chimique and published by . This book was released on 1973 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MODIFICATION DE L INSTABILITE D UN ECOULEMENT DE POISEUILLE PLAN PAR DES EFFETS DE PAROI ET DE FLUIDE NON NEWTONIEN written by Louis Blonce (auteur d'une thèse de physique) and published by . This book was released on 1995 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: UN DES PROBLEMES IMPORTANTS DANS L'ETUDE DES ECOULEMENTS DE COUCHE LIMITE EST LA COMPREHENSION ET LA MODIFICATION DU PASSAGE DE L'ETAT LAMINAIRE A L'ETAT TURBULENT. ETANT DONNE QUE CETTE TRANSITION EST GOUVERNEE PAR L'APPARITION D'INSTABILITES, NOUS NOUS INTERESSONS ICI A LEUR MODIFICATION. POUR CELA NOUS CONSIDERONS LE CAS DE L'ECOULEMENT DE POISEUILLE PLAN DEFINI PAR UN FLUIDE S'ECOULANT, ENTRE DEUX PLAQUES PLANES RIGIDES INFINIES, SOUS L'EFFET D'UN GRADIENT DE PRESSION. ON ENVISAGE ALORS DEUX MANIERES DE MODIFIER LES INSTABILITES DANS CE TYPE D'ECOULEMENT. DANS UNE PREMIERE PARTIE ON CHANGE LES CONDITIONS AUX LIMITES EN SUBSTITUANT L'UNE DES PLAQUES RIGIDES PAR UNE SURFACE SOUPLE ELASTIQUE MISE EN MOUVEMENT SOUS LES CONTRAINTES DU FLUIDE. CETTE ETUDE S'INSPIRE DES TRAVAUX DE CARPENTER ET GARRAD (1985). DANS LA DEUXIEME PARTIE, NOUS MODIFIONS LA LOI DE COMPORTEMENT DU FLUIDE: LE FLUIDE NEWTONIEN EST REMPLACE PAR UN FLUIDE NON-NEWTONIEN DECRIT PAR UNE LOI DE COMPORTEMENT NON-LINEAIRE DE TYPE GIESEKUS (1982). NOUS EFFECTUONS DANS CES DEUX PARTIES NON SEULEMENT UNE ETUDE LINEAIRE CLASSIQUE DES INSTABILITES MAIS EGALEMENT L'ETUDE DE L'EVOLUTION FAIBLEMENT NON-LINEAIRE DES PERTURBATIONS AU VOISINAGE DU SEUIL CRITIQUE DE LA STABILITE LINEAIRE QUI CONDUIT AU CALCUL D'UNE EQUATION D'AMPLITUDE DE TYPE GINZBURG-LANDAU
Download or read book CJChE written by and published by . This book was released on 1996-08 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ETUDE DE STABILITE DES ECOULEMENTS MULTICOUCHES DE FLUIDES NON NEWTONIENS written by STEPHANE.. SCOTTO and published by . This book was released on 1998 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'ECOULEMENT POISEUILLE PLAN MULTICOUCHE DE FLUIDES OLDROYD-B MODELISE LE PROCESSUS DE COEXTRUSION. L'ETUDE DE LA STABILITE LINEAIRE DE L'ECOULEMENT MONOCOUCHE MET EN EVIDENCE L'EXISTENCE D'UN SPECTRE CONTINU, POUVANT ENTRAINER UNE FAUSSE INSTABILITE ET D'UN SPECTRE DISCRET, DONT ON PRECISE LE COMPORTEMENT EN FONCTIONS DES PARAMETRES. PUIS, PROCEDANT A L'ANALYSE NON-LINEAIRE, LA NATURE SOUS-CRITIQUE DE LA BIFURCATION DE HOPF EST DEMONTREE. LES RESULTATS DE LA STABILITE DE L'ECOULEMENT BI-COUCHE RAPPELES, LA STABILITE DE L'ECOULEMENT SYMETRIQUE TROIS COUCHES EST ETUDIEE AUX LONGUES ONDES ET AUX ONDES MODEREES. DEUX MODES DITS VARIQUEUX ET SINUEUX, OBSERVES LORS D'EXPERIENCES DE COEXTRUSION CONCENTRIQUE, DESTABILISENT L'ECOULEMENT. L'ETUDE DE LA STABILITE EST ETENDU AU CAS D'UN ECOULEMENT NON SYMETRIQUE. L'IMPORTANCE DES SAUTS DE LA DERIVEE PREMIERE DE LA VITESSE DE L'ECOULEMENT DE BASE AUX INTERFACES EST NOTEE ET PERMET D'IDENTIFIER L'INTERFACE RESPONSABLE DE L'INSTABILITE. LA CONVEXITE DU PROFIL DES VITESSES, DIRECTEMENT LIEE A CES SAUTS, S'AVERE UNE CONDITION NECESSAIRE A LA STABILITE. DES ZONES DE RESONNANCE, DONT UNE CONDITION NECESSAIRE D'EXISTENCE EST EXPRIMEE EN FONCTION DU SIGNE DES SAUTS, CONDUISENT A UNE INSTABILITE INDEPENDANTE DU CARACTERE NON-NEWTONIEN DES FLUIDES. ENFIN, LA STABILITE AUX LONGUES ONDES DE L'ECOULEMENT TROIS COUCHES, LA COUCHE CENTRALE ETANT FINE PAR RAPPORT AUX DEUX COUCHES EXTERIEURES, EST CONSIDEREE ET DEUX VALEURS PROPRES INTERFACIALES SONT IDENTIFIEES : L'UNE CORRESPONDANT A CELLE PROVENANT DES DEUX COUCHES EXTERIEURES TANDIS QUE L'AUTRE TRADUIT L'INFLUENCE DE LA COUCHE MINCE. DE CETTE MANIERE, ON DONNE DES REGLES SIMPLES PERMETTANT DE CHOISIR LES CONSTANTES RHEOLOGIQUES DU FLUIDE CENTRAL DE SORTE QUE LA STABILITE SOIT DONNEE PAR LA VALEUR PROPRE ASSOCIEE AUX DEUX COUCHES EXTERIEURES.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin de l Institut international du froid written by International Institute of Refrigeration and published by . This book was released on 1997 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer 1970 written by Ulrich Grigull and published by . This book was released on 1970 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International bulletin of information on refrigeration written by International Institute of Refrigeration and published by . This book was released on 1982 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 6- include supplementary material of Publications, Reports, Work, etc. of the Institute and some of its commissions.
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 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:
Download or read book Comptes rendus de l Acad mie des sciences written by and published by . This book was released on 1996 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Biotransformation of Waste Biomass into High Value Biochemicals written by Satinder Kaur Brar and published by Springer Science & Business Media. This book was released on 2013-09-24 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agro-industrial wastes are end-products emerging after industrial processing operations and also from their treatment and disposal e.g. solid fruit wastes and sludge. The agro-industrial wastes are often present in multiphase and comprise multicomponent. Nevertheless, these wastes are a goldmine as they possess valuable organic matter which can be diverted towards high value products ranging from polymers to antibiotics to platform chemicals. There have been plenty of books published on bioenergy, enzymes and organic acids, among others. However, this emerging field of biochemical has not yet been covered so far which is an important entity of the biorefinery model from waste biomass and needs to be understood from fundamental, applied as well as commercial perspective which has been laid out in this book.
Download or read book Atkinson V Atkinson written by and published by . This book was released on 1947 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biocontrol written by Satinder Kaur Brar and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural and forest pests lead to many plant diseases resulting in poor yield and productivity. Traditionally, chemical pesticides have been used to control these pests. However, the adverse health impacts of chemical pesticides have triggered parallel research in safe biological options. Nevertheless, biocontrol has come a long way ever since the commercialisation of the first Bacillus thuringiensis based biopesticide (sporeine) in the 1940s, however, still there are research gaps. New knowledge and practical experiences have been added over the last few decades. This book reviews research on biological control agents, including bacterial, fungal and viral biopesticides along with their advanced formulation options.
