Contribution à l'étude théorique de l'écoulement de couette des gaz raréfiés PDF Download
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Author: Guy Jumarie
Publisher:
ISBN:
Category :
Languages : fr
Pages : 118
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Author: Guy Jumarie
Publisher:
ISBN:
Category :
Languages : fr
Pages : 118
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Author: Michel Raffin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 30
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Author: Shittu Omeiza Suleman
Publisher:
ISBN:
Category :
Languages : fr
Pages : 93
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Book Description
Une étude théorique et expérimentale d'un écoulement à bulles à travers un élargissement brusque est présentée. La banque de données obtenue nous a permis sur le plan global d'invalider un certain nombre de corrélations existantes concernant le taux de vide, le frottement pariétal et la chute de pression singulière, et de proposer de meilleurs outils pour le calcul de ces paramètres. En particulier, on note que la prise en compte du frottement pariétal dans le modèle semi-empirique élaboré pour le calcul de chute de pression singulière apporte une amélioration non négligeable. Sur le plan local, nos résultats ont permis de donner une tendance générale de l'organisation de l'écoulement au voisinage immédiat de la singularité. En particulier, nous avons pu déterminer les longueurs d'établissement, ainsi que les tailles des deux tourbillons contrarotatifs pour plusieurs situations. Le caractère instationnaire de la position du point de recollement a été mis en évidence par une analyse statistique. Celui-ci semble osciller autour d'une position moyenne sans fréquence privilégiée
Author: C. David Andereck
Publisher: Springer Science & Business Media
ISBN: 1461534380
Category : Science
Languages : en
Pages : 351
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Book Description
Seldom does a physical system, particularly one as apparently simple as the flow of a Newtonian fluid between concentric rotating cylinders, retain the interest of scientists, applied mathematicians and engineers for very long. Yet, as this volume goes to press it has been nearly 70 years since G. I. Taylor's outstanding experimental and theoretical study of the linear stability of this flow was published, and a century since the first experiments were performed on rotating cylinder viscometers. Since then, the study of this system has progressed enormously, but new features of the flow patterns are still being uncovered. Interesting variations on the basic system abound. Connections with open flows are being made. More complex fluids are used in some experiments. The vigor of the research going on in this particular example of nonequilibrium systems was very apparent at the NATO Advanced Research Workshop on "Ordered and Turbulent Patterns in Taylor Couette Flow," held in Columbus, Ohio, USA May 22-24, 1991. A primary goal of this ARW was to bring together those interested in pattern formation in the classic Taylor Couette problem with those looking at variations on the basic system and with those interested in related systems, in order to better define the interesting areas for the future, the open questions, and the features common (and not common) to closed and open systems. This volume contains many of the contributions presented during the workshop.
Author: Uriel Frisch
Publisher: Cambridge University Press
ISBN: 1139935976
Category : Science
Languages : en
Pages : 318
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Book Description
This textbook presents a modern account of turbulence, one of the greatest challenges in physics. The state-of-the-art is put into historical perspective five centuries after the first studies of Leonardo and half a century after the first attempt by A. N. Kolmogorov to predict the properties of flow at very high Reynolds numbers. Such 'fully developed turbulence' is ubiquitous in both cosmical and natural environments, in engineering applications and in everyday life. The intended readership for the book ranges from first-year graduate students in mathematics, physics, astrophysics, geosciences and engineering, to professional scientists and engineers. Elementary presentations of dynamical systems ideas, of probabilistic methods (including the theory of large deviations) and of fractal geometry make this a self-contained textbook.
Author: C. Truesdell
Publisher: Springer Science & Business Media
ISBN: 3662103885
Category : Science
Languages : en
Pages : 629
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Book Description
This third edition includes the corrections made by the late C. Truesdell in his personal copy. It is annotated by S. Antman who describes the monograph`s genesis and the impact it has made on the modern development of mechanics. Originally published as Volume III/3 of the famous Encyclopedia of Physics in 1965, this book describes and summarizes "everything that was both known and worth knowing in the field at the time." It also has greatly contributed to the unification and standardization of the concepts, terms and notations in the field.
Author: Yoshio Sone
Publisher: Springer Science & Business Media
ISBN: 081764573X
Category : Science
Languages : en
Pages : 667
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Book Description
This self-contained book is an up-to-date description of the basic theory of molecular gas dynamics and its various applications. The book, unique in the literature, presents working knowledge, theory, techniques, and typical phenomena in rarefied gases for theoretical development and application. Basic theory is developed in a systematic way and presented in a form easily applied for practical use. In this work, the ghost effect and non-Navier–Stokes effects are demonstrated for typical examples—Bénard and Taylor–Couette problems—in the context of a new framework. A new type of ghost effect is also discussed.
Author: Genevieve Comte-Bellot
Publisher: Springer Science & Business Media
ISBN: 3642830455
Category : Science
Languages : en
Pages : 597
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Book Description
Since 1964 the main function of the European Mechanics Committee has been to arrange Euromech Colloquia. These are three- or four-day meetings for the discussion of current research on a specified and relatively narrow topic in mechanics, by about 50 specialists chosen for their active involvement in research in that topic. The organization of each Euromech Colloquium is entrusted by the Committee to one or two selected scientists of repute in the field, and these organizers are enjoined to achieve a friendly and informal forum for discussion, with a minimum of paper work and expenditure. Over 220 Euromech Colloquia have been held since 1964 (about 40 each in France, West Germany and Britain and the remainder in 18 countries in both western and eastern Europe) on a wide range of topics drawn from the mechanics of solid materials, hydrodynamics, gas dynamics and mechanical systems. The Committee believes that collectively, Euromech Colloquia have made a significant contribution to the exchange of ideas on topics in mechanics within Europe and have thereby helped to overcome the barriers to easy scientific communication in that sorely divided continent. A few years ago the European Mechanics Committee turned its atten tion to the possible need for European conferences on a larger scale than Euromech Colloquia.
Author: S. C. Bhatia
Publisher:
ISBN: 9788123908274
Category :
Languages : en
Pages :
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Author: Eugene R. Speer
Publisher: Princeton University Press
ISBN: 1400881862
Category : Mathematics
Languages : en
Pages : 312
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Book Description
This book contains a valuable discussion of renormalization through the addition of counterterms to the Lagrangian, giving the first complete proof of the cancellation of all divergences in an arbitrary interaction. The author also introduces a new method of renormalizing an arbitrary Feynman amplitude, a method that is simpler than previous approaches and can be used to study the renormalized perturbation series in quantum field theory.
