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Fluid And Thermodynamics

Author: Kolumban Hutter
Publisher: Springer
ISBN: 3319336363
Size: 72.78 MB
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In this book fluid mechanics and thermodynamics (F&T) are approached as interwoven, not disjoint fields. The book starts by analyzing the creeping motion around spheres at rest: Stokes flows, the Oseen correction and the Lagerstrom-Kaplun expansion theories are presented, as is the homotopy analysis. 3D creeping flows and rapid granular avalanches are treated in the context of the shallow flow approximation, and it is demonstrated that uniqueness and stability deliver a natural transition to turbulence modeling at the zero, first order closure level. The difference-quotient turbulence model (DQTM) closure scheme reveals the importance of the turbulent closure schemes’ non-locality effects. Thermodynamics is presented in the form of the first and second laws, and irreversibility is expressed in terms of an entropy balance. Explicit expressions for constitutive postulates are in conformity with the dissipation inequality. Gas dynamics offer a first application of combined F&T. The book is rounded out by a chapter on dimensional analysis, similitude, and physical experiments.

Hydraulicians In Europe 1800 2000

Author: Willi Hager
Publisher: CRC Press
ISBN: 1466554983
Size: 28.11 MB
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More than 850 individuals partly forgotten by name, but sometimes found in historical writings, together with many well known or recently deceased persons are presented in terms of bio-data, short career highlights, and main advances made to the profession with a short biography of the main writings. If available, a portrait is also included. Hydraulicians in Europe, Volume 2 is a continuation of the first volume, both in outline and in coverage and pagination. Volumes 1 and 2 include more than 1500 biographies.

Physics Of Lakes

Author: Kolumban Hutter
Publisher: Springer Science & Business Media
ISBN: 3642191126
Size: 14.46 MB
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The overwhelming focus of this 2nd volume of “Physics of Lakes” is adequately expressed by its subtitle “Lakes as Oscillators”. It deals with barotropic and baroclinic waves in homogeneous and stratified lakes on the rotating Earth and comprises 12 chapters, starting with rotating shallow-water waves, demonstrating their classification into gravity and Rossby waves for homogeneous and stratified water bodies. This leads to gravity waves in bounded domains of constant depth, Kelvin, Poincaré and Sverdrup waves, reflection of such waves in gulfs and rectangles and their description in sealed basins as barotropic ‘inertial waves proper’. The particular application to gravity waves in circular and elliptical basins of constant depth leads to the description of Kelvin-type and Poincaré-type waves and their balanced description in basins of arbitrary geometry on the rotating Earth. Consideration of two-, three- and n-layer fluids with sharp interfaces give rise to the description of gravity waves of higher order baroclinicity with experimental corroboration in a laboratory flume and e.g. in Lake of Lugano, Lake Banyoles and Lake Biwa. Barotropic wave modes in Lake Onega with complex geometry show that data and computational output require careful interpretation. Moreover, a summer field campaign in Lake of Lugano and its two-layer modal analysis show that careful statistical analyses of the data are requested to match data with computational results. Three chapters are devoted to topographic Rossby waves. Conditions are outlined for which these waves are negligibly affected by baroclinicity. Three classes of these large period modes are identified: channel modes, so-called Ball modes and bay modes, often with periods which lie very close together. The last chapter deals with an entire class of Chrystal-type equations for barotropic waves in elongated basins which incorporate the effects of the rotation of the Earth.

Hydraulicians In The Usa 1800 2000

Author: Willi H. Hager
Publisher: CRC Press
ISBN: 1315680122
Size: 51.81 MB
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This book provides 1-page short biographies of scientists and engineers having worked in the areas of hydraulic engineering and fluid dynamics in the USA. On each page, a notable individual is highlighted by: (1) Exact dates and locations of birth and death; (2) Educational and professional details, including also awards received; (3) Reasons for inclusion in the book by highlighting key publications; (4) Short bibliography including both individual’s own, and source literature such as Who’s Who details, or origination details of the portrait; (5) In most cases, an illustrative portrait or photo showing, for example, a book cover of the individual, or photograph of a typical work such as a dam or a canal. This volume includes almost 1,000 individuals, of which there are only 2 women. The book also provides a detailed Index, and a 2-page list of individuals (normally born in Europe) listed in previous volumes (1 and 2), but having a relation to this volume 3. The book also contains a map of the USA highlighting the major American rivers, with a close relation to projects carried out by several of the individuals presented in the book. This book provides a beautiful overview of the many scientists and engineers having contributed to the current knowledge in hydraulic engineering and fluid mechanics. The author made every effort in compiling the most important hydraulicians of the USA in this work as it will become much more difficult in future decades to find biographical details on these, given the current policy that so few memoirs or necrologues are published.

Ludwig Prandtl Str Mungsforscher Und Wissenschaftsmanager

Author: Michael Eckert
Publisher: Springer-Verlag
ISBN: 3662499185
Size: 20.84 MB
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Ludwig Prandtl gilt als Pionier der modernen Strömungsmechanik. Seine Grenzschichttheorie überbrückte eine Jahrhunderte andauernde Kluft zwischen Theorie und Praxis auf diesem Gebiet. Prandtl hinterließ darüber hinaus bleibende Spuren in einer Fülle von ingenieurwissenschaftlichen Disziplinen, von der Festigkeitslehre bis zur Erforschung der Turbulenz. Auch beim Aufbau neuer Institute machte sich Ludwig Prandtl einen Namen: Die Aerodynamische Versuchsanstalt in Göttingen, eine Vorläufer-Einrichtung des Deutschen Zentrums für Luft- und Raumfahrt (DLR), geht auf Prandtls Initiative zurück. Zudem gründete er auch das Kaiser- Wilhelm-Institut für Strömungsforschung, das heute als Max-Planck-Institut für Dynamik und Selbstorganisation fortbesteht. Seine Reputation als „Vater der modernen Aerodynamik“ verschaffte Prandtl auch Einfluss bei politischen Weichenstellungen der Luftfahrtforschung - vom Deutschen Kaiserreich über die Weimarer Republik bis zum „Dritten Reich“. Im Zweiten Weltkrieg zählte er zum Kreis der Berater für die Forschungspolitik des Reichsluftfahrtministeriums. Ludwig Prandtls Korrespondenz mit Kollegen, Forschungsmanagern, Industriellen und Politikern dient dieser Biografie als wichtigste Quelle. Sie ermöglicht einen unverstellten Blick auf die engen Beziehungen zu Technik und Politik, die dieses Wissenschaftlerleben so besonders machten.

Der Dunkle Kreuzzug

Author: Walter H. Hunt
Publisher: Heyne Verlag
ISBN: 3641151171
Size: 17.39 MB
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Die Macht des Wahnsinns Endlich haben die Menschen und die vogelähnlichen Zor eine Möglichkeit gefunden, die insektoiden Vuhl-Gestaltwandler wirksam zu bekämpfen. Die Zor nennen es „Die Kraft des Wahnsinns“, es handelt sich dabei um Hass in seiner konzentriertesten Form. Owen Garret, der diese Mentalwaffe entdeckt hat, gibt sein Wissen an den geheimnisvollen John Smith weiter. Der erkennt seine Chance und ruft die Bewegung „Flammender Stern“ ins Leben, die es sich zum Ziel gesetzt hat, die Vuhl vollständig auszurotten. Doch Smith hat noch weitaus ehrgeizigere Pläne. Seine Gefolgsleute unterwandern den Geheimdienst und die Flotte, um die Macht im Sol-Imperium an sich zu reißen und auch die Zor auszulöschen. Nur eine Handvoll Menschen und Zor versucht, den Holocaust und eine neue Diktatur zu verhindern. Doch auch sie ahnen nicht, dass sie von einer Macht manipuliert werden, die weit jenseits ihres Horizonts agiert ...