Author: L. Pamela Cook Publisher: SIAM ISBN: 0898713102 Category : Technology & Engineering Languages : en Pages : 98
Book Description
This volume offers exciting results, perspectives, and case studies for the treatment of problems arising in transonic aerodynamics. New advances including triple deck theory, analysis of stagnation at the nose of a body, transonic choked flow, and the transonic area rule are presented. Interest in analyzing the transonic range of flight, its stability properties, and especially the question of designing reduced drag (shockless or weak shock) airfoils keeps growing. Present day commercial aircraft cruise in the transonic range. Mechanical and aeronautical engineers interested in compressible fluid flows, design of optimal wings, and an understanding of transonic flow held about wings and airfoils will find the book invaluable. This book is understandable to those with a knowledge of continuum mechanics (fluids) and asymptotic methods. It is appropriate for graduate courses in aerodynamics and mathematical methods.
Author: Holt Ashley Publisher: Courier Corporation ISBN: 0486648990 Category : Technology & Engineering Languages : en Pages : 306
Book Description
This excellent, innovative reference offers a wealth of useful information and a solid background in the fundamentals of aerodynamics. Fluid mechanics, constant density inviscid flow, singular perturbation problems, viscosity, thin-wing and slender body theories, drag minimalization, and other essentials are addressed in a lively, literate manner and accompanied by diagrams.
Author: Richard W. Barnwell Publisher: ISBN: Category : Aerodynamics, Transonic Languages : en Pages : 82
Book Description
An analytical solution is obtained for the perturbation velocity potential for transonic flow about lifting wing-body configurations with order-one span-length ratios and small reduced-span-length ratios and equivalent-thickness-length ratios. The analysis is performed with the method of matched asymptotic expansions. The angles of attack which are considered are small but are large enough to insure that the effects of lift in the region far from the configuration are either dominant or comparable with the effects of thickness. The modification to the equivalence rule which accounts for these lift effects is determined. An analysis of transonic flow about lifting wings with large aspect ratios is also presented.
Author: Roelof Vos Publisher: Springer ISBN: 9401797471 Category : Technology & Engineering Languages : en Pages : 561
Book Description
Written to teach students the nature of transonic flow and its mathematical foundation, this book offers a much-needed introduction to transonic aerodynamics. The authors present a quantitative and qualitative assessment of subsonic, supersonic and transonic flow around bodies in two and three dimensions. The book reviews the governing equations and explores their applications and limitations as employed in modeling and computational fluid dynamics. Some concepts, such as shock and expansion theory, are examined from a numerical perspective. Others, including shock-boundary-layer interaction, are discussed from a qualitative point of view. The book includes 60 examples and more than 200 practice problems. The authors also offer analytical methods such as Method of Characteristics (MOC) that allow readers to practice with the subject matter. The result is a wealth of insight into transonic flow phenomena and their impact on aircraft design, including compressibility effects, shock and expansion waves, shock-boundary-layer interaction and aeroelasticity.
Author: D. Ross Publisher: Forgotten Books ISBN: 9780484505758 Category : Mathematics Languages : en Pages : 198
Book Description
Excerpt from Computation of the Transonic Flow About a Swept Wing in the Presence of an Engine Nacelle A principal goal of computational transonic aerodynamics is to develop computa tional methods for the analysis of transonic flows and for the design of efficient transonic air craft. We are interested in particular in the problem of designing wings with only weak shocks at a given Mach number and angle of attack. Methods, which we shall describe below, exist for the design of shockless transonic airfoils and for computing the transonic flow about a given wing. One approach to the design of a low drag transonic swept wing is to start with a shockiess airfoil in each wing section. Three-dimensional effects will cause shocks on such a wing, but we expect them not to be too severe. By small readjustments of the wing surface, which can be made by a code which treats the wing surface as a free boun dary, we can redesign the wing to reduce the strength of the shocks. Our method takes this program one step further. If an obstacle, such as an engine nacelle, is placed in the flow near an almost shockless wing, sizeable shocks can be expected to appear on the wing. We have incorporated a model of such an obstacle into the free boundary design code of Bauer. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Klaus Hannemann Publisher: Springer Science & Business Media ISBN: 354085181X Category : Science Languages : en Pages : 786
Book Description
The 26th International Symposium on Shock Waves in Göttingen, Germany was jointly organised by the German Aerospace Centre DLR and the French-German Research Institute of Saint Louis ISL. The year 2007 marked the 50th anniversary of the Symposium, which first took place in 1957 in Boston and has since become an internationally acclaimed series of meetings for the wider Shock Wave Community. The ISSW26 focused on the following areas: Shock Propagation and Reflection, Detonation and Combustion, Hypersonic Flow, Shock Boundary Layer Interaction, Numerical Methods, Medical, Biological and Industrial Applications, Richtmyer Meshkov Instability, Blast Waves, Chemically Reacting Flows, Diagnostics, Facilities, Flow Visualisation, Ignition, Impact and Compaction, Multiphase Flow, Nozzles Flows, Plasmas and Propulsion. The two Volumes contain the papers presented at the symposium and serve as a reference for the participants of the ISSW 26 and individuals interested in these fields.
Author: L. Pamela Cook
Author: 
Author: Holt Ashley
Author: Richard W. Barnwell
Author: R. J. Zwaan
Author: Roelof Vos
Author: John R. Spreiter
Author: Michael J. Mann
Author: D. Ross
Author: Klaus Hannemann