Saturday, January 4, 2020

The science of fluid mechanics is neither new nor...

The science of fluid mechanics is neither new nor biblical; however, most of the progress in this field was made in the 20th century. Therefore it is appropriate to open this text with a brief history of the discipline, with only a very few names mentioned. As far as we can document history, fluid dynamics and related engineering were always integral parts of human evolution. Ancient civilizations built ships, sails, irrigation systems, and flood-management structures, all requiring some basic understanding of fluid flow. Perhaps the best known early scientist in this field is Archimedes of Syracuse (287–212 b.c.e.), founder of the field now we call â€Å"fluid statics,† whose laws on buoyancy and flotation are used to this day. A major leap in†¦show more content†¦These differential equations, the Euler equations, are the basis for modern fluid dynamics and perhaps the most significant contribution to the process of understanding fluid flows. Although Euler derived the mathematical formulation, he did not provide solutions to his equations. (Note that Euler is pronounced â€Å"oiler,† not â€Å"yuler†; hence we have â€Å"an Euler equation.†) Science and experimentation in the field increased, but it was only in the 19th century that the governing equations were finalized in the form known today. A Frenchman, Claude-Louis-Marie-Henri Navier (1785–1836), understood that friction in a flowing fluid must be added to the force balance. He incorporated these terms into the Euler equations and published the first version of the complete set of equations in 1822. These equations are known today as the Navier–Stokes equations. Communications and information transfers were not well developed in those days. For example, Sir George Gabriel Stokes (1819–1903) lived on the English side of the English Channel but did not communicate directly with Navier. Independently, he also added the viscosity term to the Euler equations. Hence the glory is shared by both scientists for these equations. Euler can be also considered the first to solve the equations for the motion of a sphere in a viscous flow, which is now called â€Å"Stokes flow.† Although the theoretical basis for the governing equation hadShow MoreRelatedRastafarian79520 Words   |  319 Pages Rastafari This page intentionally left blank Rastafari From Outcasts to Culture Bearers Ennis Barrington Edmonds 2003 198 Madison Avenue, New York, New York 10016 Oxford University Press is a department of the University of Oxford It furthers the Universitys objective of excellence in research, scholarship, and education by publishing worldwide in Oxford New York Auckland Bangkok Buenos Aires Cape Town Chennai Dar es Salaam Delhi Hong Kong Istanbul Karachi Kolkata KualaRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words   |  656 Pagesand Roy Rosenzweig Also in this series: Paula Hamilton and Linda Shopes, eds., Oral History and Public Memories Tiffany Ruby Patterson, Zora Neale Hurston and a History of Southern Life Lisa M. Fine, The Story of Reo Joe: Work, Kin, and Community in Autotown, U.S.A. Van Gosse and Richard Moser, eds., The World the Sixties Made: Politics and Culture in Recent America Joanne Meyerowitz, ed., History and September 11th John McMillian and Paul Buhle, eds., The New Left Revisited David M. ScobeyRead MoreStrategy Safari by Mintzberg71628 Words   |  287 PagesSTRATEGY SAFARI A GUIDED TOURTHROUGH THE WILDS OF STRATEGIC MANAGEMENT HENRY MINTZBERG BRUCE AHLSTRAND JOSEPH LAMPEL T H E FREE PRESS NEW YORK aJaiz. u.frmiu/i  «...* „.;i†¢Ã¢â‚¬ ¢/ . †¢ . . †¢. »Ã¢â‚¬ ¢.. . .. †¢..†¢Ã¢â‚¬ ¢Ã¢â‚¬ ¢.-.†¢Ã¢â‚¬ ¢a/itiktSii^i THE FREE PRESS A Division of Simon Schuster Inc. 1230 Avenue of the Americas New York, NY 10020 Copyright  © 1998 by Henry Mintzberg, Ltd., Bruce Ahlstrand, and Joseph Lampel All rights reserved, including the right of reproduction in whole or in part in any form. THE

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