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Book Description
LES MILIEUX POREUX SONT LE SIEGE DE TRANSFERTS MULTIPLES QUI PEUVENT ETRE THERMIQUES, HYDRIQUES OU SOLUTAUX. CES PHENOMENES SONT IMPORTANTS DANS L'ETUDE DE LA SURETE DES CENTRES DE STOCKAGES DE DECHETS RADIOACTIFS, AFIN DE PREDIRE L'EVENTUEL RELACHEMENT DES RADIONUCLEIDES HORS DES COLIS. DEVANT DE TELS ENJEUX, IL EST ESSENTIEL DE S'INTERESSER AUX PHENOMENES COUPLES HABITUELLEMENT NEGLIGES PAR RAPPORT AUX EFFETS DIRECTS TELS QUE LA LOI DE FOURIER, LA LOI DE DARCY OU LA LOI DE FICK. LA PREMIERE PARTIE DE CE TRAVAIL CONSISTE A ETABLIR UN MODELE MATHEMATIQUE RIGOUREUX, A PARTIR DE LA THERMODYNAMIQUE DES PROCESSUS IRREVERSIBLES, DES TRANSFERTS SE PRODUISANT DANS UN MILIEU POREUX NON SATURE SUPPOSE INDEFORMABLE. A PARTIR DU SYSTEME DE QUATRE EQUATIONS COUPLEES AUX DERIVEES PARTIELLES OBTENU, UNE MODELISATION NUMERIQUE A ETE REALISEE ET IMPLANTEE DANS LE CODE CALCUL CESAR-LCPC DEVELOPPE AU LABORATOIRE CENTRAL DES PONTS ET CHAUSSEES. L'ACCENT A ETE PORTE SUR L'EQUATION DE TRANSFERT DU SOLUTE SOUS L'INFLUENCE DE LA DIFFUSION MOLECULAIRE, DE LA DISPERSION MECANIQUE ET DE L'EFFET SORET. EQUIVALENT A LA THERMODIFFUSION POUR LES GAZ, L'EFFET SORET TRADUIT L'INFLUENCE DU GRADIENT DE TEMPERATURE SUR LE TRANSPORT DES SOLUTES.
Book Description
LES MILIEUX POREUX SONT LE SIEGE DE TRANSFERTS MULTIPLES QUI PEUVENT ETRE THERMIQUES, HYDRIQUES OU SOLUTAUX. CES PHENOMENES SONT IMPORTANTS DANS L'ETUDE DE LA SURETE DES CENTRES DE STOCKAGES DE DECHETS RADIOACTIFS, AFIN DE PREDIRE L'EVENTUEL RELACHEMENT DES RADIONUCLEIDES HORS DES COLIS. DEVANT DE TELS ENJEUX, IL EST ESSENTIEL DE S'INTERESSER AUX PHENOMENES COUPLES HABITUELLEMENT NEGLIGES PAR RAPPORT AUX EFFETS DIRECTS TELS QUE LA LOI DE FOURIER, LA LOI DE DARCY OU LA LOI DE FICK. LA PREMIERE PARTIE DE CE TRAVAIL CONSISTE A ETABLIR UN MODELE MATHEMATIQUE RIGOUREUX, A PARTIR DE LA THERMODYNAMIQUE DES PROCESSUS IRREVERSIBLES, DES TRANSFERTS SE PRODUISANT DANS UN MILIEU POREUX NON SATURE SUPPOSE INDEFORMABLE. A PARTIR DU SYSTEME DE QUATRE EQUATIONS COUPLEES AUX DERIVEES PARTIELLES OBTENU, UNE MODELISATION NUMERIQUE A ETE REALISEE ET IMPLANTEE DANS LE CODE CALCUL CESAR-LCPC DEVELOPPE AU LABORATOIRE CENTRAL DES PONTS ET CHAUSSEES. L'ACCENT A ETE PORTE SUR L'EQUATION DE TRANSFERT DU SOLUTE SOUS L'INFLUENCE DE LA DIFFUSION MOLECULAIRE, DE LA DISPERSION MECANIQUE ET DE L'EFFET SORET. EQUIVALENT A LA THERMODIFFUSION POUR LES GAZ, L'EFFET SORET TRADUIT L'INFLUENCE DU GRADIENT DE TEMPERATURE SUR LE TRANSPORT DES SOLUTES.
Author: Kuo-Tsung Yu Publisher: Springer ISBN: 9811024987 Category : Science Languages : en Pages : 425
Book Description
This book offers an easy-to-understand introduction to the computational mass transfer (CMT) method. On the basis of the contents of the first edition, this new edition is characterized by the following additional materials. It describes the successful application of this method to the simulation of the mass transfer process in a fluidized bed, as well as recent investigations and computing methods for predictions for the multi-component mass transfer process. It also demonstrates the general issues concerning computational methods for simulating the mass transfer of the rising bubble process. This new edition has been reorganized by moving the preparatory materials for Computational Fluid Dynamics (CFD) and Computational Heat Transfer into appendices, additions of new chapters, and including three new appendices on, respectively, generalized representation of the two-equation model for the CMT, derivation of the equilibrium distribution function in the lattice-Boltzmann method, and derivation of the Navier-Stokes equation using the lattice-Boltzmann model. This book is a valuable resource for researchers and graduate students in the fields of computational methodologies for the numerical simulation of fluid dynamics, mass and/or heat transfer involved in separation processes (distillation, absorption, extraction, adsorption etc.), chemical/biochemical reactions, and other related processes.
Author: Kuo-Tsong Yu Publisher: Springer ISBN: 9783642539121 Category : Science Languages : en Pages : 337
Book Description
This book presents a new computational methodology called Computational Mass Transfer (CMT). It offers an approach to rigorously simulating the mass, heat and momentum transfer under turbulent flow conditions with the help of two newly published models, namely the C’2—εC’ model and the Reynolds mass flux model, especially with regard to predictions of concentration, temperature and velocity distributions in chemical and related processes. The book will also allow readers to understand the interfacial phenomena accompanying the mass transfer process and methods for modeling the interfacial effect, such as the influences of Marangoni convection and Rayleigh convection. The CMT methodology is demonstrated by means of its applications to typical separation and chemical reaction processes and equipment, including distillation, absorption, adsorption and chemical reactors. Professor Kuo-Tsong Yu is a Member of the Chinese Academy of Sciences. Dr. Xigang Yuan is a Professor at the School of Chemical Engineering and Technology, Tianjin University, China.
Author: Isabelle Mathieu-Balster
Author: Isabelle Mathieu-Balster
Author: Kuo-Tsung Yu
Author: Kuo-Tsong Yu