PERTURBATIONS LINEAIRES D'UNE SOLUTION AUTOSEMBLABLE DE L'HYDRODYNAMIQUE AVEC CONDUCTION NON LINEAIRE PDF Download
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Author: Carine Boudesocque-Dubois
Publisher:
ISBN:
Category :
Languages : fr
Pages : 224
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Book Description
LA QUESTION DE LA STABILITE D'UN ECOULEMENT D'ABLATION, POUR LEQUEL UN CHOC PRECEDE UN FRONT DE CONDUCTION, SE POSE DANS LE CADRE DE LA FUSION PAR CONFINEMENT INERTIEL. DANS LE MODELE EST CONSIDEREE UNE SOLUTION EXACTE AUTOSEMBLABLE DES EQUATIONS DE L'HYDRODYNAMIQUE AVEC UNE CONDUCTION THERMIQUE NON LINEAIRE, EN SYMETRIE PLANE ET POUR UN DOMAINE SEMI-INFINI. FAUTE D'UNE SOLUTION ANALYTIQUE, UNE RESOLUTION NUMERIQUE DE GRANDE PRECISION EST OBTENUE EN ASSOCIANT UNE METHODE DE DIFFERENCES FINIES A UN ALGORITHME DE RELAXATION COUPLE A UNE METHODE PSEUDO-SPECTRALE BI-DOMAINE. LA STABILITE EST ETUDIEE EN INTRODUISANT DES PERTURBATIONS LINEAIRES DANS LE CADRE D'UNE FORMULATION LAGRANGIENNE-EULERIENNE. LE PROBLEME AUX CONDITIONS INITIALES ET AUX LIMITES EST RESOLU PAR UNE METHODE DE SPLITTING ENTRE UN SYSTEME HYPERBOLIQUE ET UNE EQUATION PARABOLIQUE. LA METHODE DE THOMPSON EST ETENDUE AUX METHODES SPECTRALES POUR LE TRAITEMENT DES CONDITIONS AUX LIMITES DU SYSTEME HYPERBOLIQUE. L'EQUATION PARABOLIQUE EST RESOLUE PAR LA METHODE DE LA MATRICE D'INFLUENCE. CES METHODES DE RESOLUTION SONT VALIDEES SUR DES SOLUTIONS EXACTES. EN CONSIDERANT UNE PERTURBATION DU FLUX AUX LIMITES, LES EVOLUTIONS SPATIO-TEMPORELLES DES PERTURBATIONS DE DENSITE, DE VITESSE ET DE TEMPERATURE SONT PRESENTEES.
Author: Carine Boudesocque-Dubois
Publisher:
ISBN:
Category :
Languages : fr
Pages : 224
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Book Description
LA QUESTION DE LA STABILITE D'UN ECOULEMENT D'ABLATION, POUR LEQUEL UN CHOC PRECEDE UN FRONT DE CONDUCTION, SE POSE DANS LE CADRE DE LA FUSION PAR CONFINEMENT INERTIEL. DANS LE MODELE EST CONSIDEREE UNE SOLUTION EXACTE AUTOSEMBLABLE DES EQUATIONS DE L'HYDRODYNAMIQUE AVEC UNE CONDUCTION THERMIQUE NON LINEAIRE, EN SYMETRIE PLANE ET POUR UN DOMAINE SEMI-INFINI. FAUTE D'UNE SOLUTION ANALYTIQUE, UNE RESOLUTION NUMERIQUE DE GRANDE PRECISION EST OBTENUE EN ASSOCIANT UNE METHODE DE DIFFERENCES FINIES A UN ALGORITHME DE RELAXATION COUPLE A UNE METHODE PSEUDO-SPECTRALE BI-DOMAINE. LA STABILITE EST ETUDIEE EN INTRODUISANT DES PERTURBATIONS LINEAIRES DANS LE CADRE D'UNE FORMULATION LAGRANGIENNE-EULERIENNE. LE PROBLEME AUX CONDITIONS INITIALES ET AUX LIMITES EST RESOLU PAR UNE METHODE DE SPLITTING ENTRE UN SYSTEME HYPERBOLIQUE ET UNE EQUATION PARABOLIQUE. LA METHODE DE THOMPSON EST ETENDUE AUX METHODES SPECTRALES POUR LE TRAITEMENT DES CONDITIONS AUX LIMITES DU SYSTEME HYPERBOLIQUE. L'EQUATION PARABOLIQUE EST RESOLUE PAR LA METHODE DE LA MATRICE D'INFLUENCE. CES METHODES DE RESOLUTION SONT VALIDEES SUR DES SOLUTIONS EXACTES. EN CONSIDERANT UNE PERTURBATION DU FLUX AUX LIMITES, LES EVOLUTIONS SPATIO-TEMPORELLES DES PERTURBATIONS DE DENSITE, DE VITESSE ET DE TEMPERATURE SONT PRESENTEES.
Author: Virginie Lombard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 283
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Book Description
Une approche possible pour l’étude de la stabilité d’écoulements d’ablation en fusion par confinement inertiel consiste à considérer les solutions autosemblables de l’hydrodynamique avec conduction thermique non linéaire pour des gaz parfaits en milieu semi-infini. Ces solutions et leurs perturbations sont calculées à l’aide de méthodes spectrales multidomaines avec adaptation dynamique de maillage. Pour des non-uniformités du flux laser, il est montré que le maximum d’amplitude des perturbations dépend fortement de la compressibilité. Des couplages entre les modes de Kovásznay sont identifiés et des équations d’évolution sont déterminées pour chaque zone de l’écoulement d’ablation. Une comparaison avec des résultats expérimentaux d’écoulements soumis à des perturbations de type rugosité est ensuite amorcée
Author: Canada. Department of Fisheries and Oceans
Publisher: Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir
ISBN:
Category : Science
Languages : fr
Pages : 376
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Book Description
Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
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: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472
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Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.
Author: Philippe Gourbesville
Publisher: Springer
ISBN: 9812876154
Category : Science
Languages : en
Pages : 616
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Book Description
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: John Leask Lumley
Publisher:
ISBN:
Category : Atmosphere
Languages : en
Pages : 264
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Author: D Brian Spalding
Publisher: Elsevier
ISBN: 1483188175
Category : Reference
Languages : en
Pages : 393
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Book Description
Genmix: A General Computer Program for Two-dimensional Parabolic Phenomena explains a computer program called GENMIX. The main intention of the program is to be used as a tool of instructions. The name of the program is a mixture of two considerations: its generality and its concern for mixing processes. The book aims to help the potential user to understand the physical and mathematical basis of the topic computer program. It is also the aim of the book to make the program applicable to practical problems. The book is arranged in such a way as to parallel a course of lectures and associated computer-workshop sessions wherein the student is allowed to do some elementary computations as soon as he has gained some knowledge of the method. The book contains the mathematical, physical, and computer-coding aspects of the program. Concepts such as the boundary layer, two-dimensional, and steady- flow are defined and discussed in depth. The text will be a useful tool for computer instructors and students.
Author: C.P. Enz
Publisher: Springer Science & Business Media
ISBN: 9401022747
Category : Language Arts & Disciplines
Languages : en
Pages : 568
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Book Description
This collection of essays is intended as a tribute to Josef Maria Jauch on his sixtieth birthd~. Through his scientific work Jauch has justly earned an honored name in the community of theo retical physicists. Through his teaching and a long line of dis tinguished collaborators he has put an imprint on modern mathema tical physics. A number of Jauch's scientific collaborators, friends and admirers have contributed to this collection, and these essays reflect to some extent Jauch's own wide interests in the vast do main of theoretical physics. Josef Maria Jauch was born on 20 September 1914, the son of Josef Alois and Emma (nee Conti) Jauch, in Lucerne, Switzerland. Love of science was aroused in him early in his youth. At the age of twelve he came upon a popular book on astronomy, and an exam ple treated in this book mystified him. It was stated that if a planet travels around a centre of Newtonian attraction with a pe riod T, and if that planet were stopped and left to fall into the centre from any point of the circular orbit, it would arrive at the centre in the time T/I32. Young Josef puzzled about this for several months until he made his first scientific discovery : that this result could be derived from Kepler's third law in a quite elementary way.
Author: Trong T. Bui
Publisher:
ISBN:
Category : Parallel computers
Languages : en
Pages : 28
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Book Description
