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Author : John Wilder Miles
Publisher : Unknown
Page : 244 pages
File Size : 45,8 Mb
Release : 1980
Category : Aerodynamics, Supersonic
ISBN : OSU:32435066662594
Author : John Wilder Miles
Publisher : Unknown
Page : 220 pages
File Size : 43,8 Mb
Release : 1959
Category : Aerodynamics, Supersonic
ISBN : LCCN:59000543
Author : Marten T. Landahl
Publisher : Courier Dover Publications
Page : 147 pages
File Size : 54,7 Mb
Release : 2019-04-17
Category : Science
ISBN : 9780486839905
This classic monograph on unsteady transonic flow — the flow of air encountered at speeds at or near the speed of sound — is of continuing interest to students and professionals in aerodynamics, fluid dynamics, and other areas of applied mathematics. After a brief Introduction, Swedish physicist Mårten T. Landahl presents a chapter in which the two-dimensional solution is derived, succeeded by a discussion of its relation to the subsonic and supersonic solutions. Three chapters on low aspect ratio configurations follow, covering triangular wings and similar planforms with curved leading edges, rectangular wings, and cropped delta wings, and low aspect ratio wing-body combinations. The treatment concludes with a consideration of the experimental determination of air forces on oscillating wings at transonic speeds.
Author : Elie Carafoli
Publisher : Elsevier
Page : 608 pages
File Size : 41,5 Mb
Release : 2013-10-22
Category : Technology & Engineering
ISBN : 9781483160276
Division II: Aerodynamics, Volume 7: Wing Theory in Supersonic Flow examines the cases of isolated simple wings, wings with vertical plane tail, cruciform wings, and simple or cruciform wings fitted with a body. This book presents the method for the actual calculation of isolated wings or of more complex system. Organized into 12 chapters, this volume starts with an overview of the basic equations in the mechanics of inviscid fluids. This text then presents a unified theory that is established for angularly shaped wings in supersonic flow. Other chapters consider the method for calculating the characteristics of drag, lift, and moments for various shapes of the trailing edge line. This book discusses as well the wings of ordinary shapes, delta wings, yawed wings, polygonal wings, trapezoid wings, and arrow-head or swept-back wings. The final chapter deals with a delta wing with a central fusiform body. This book is a valuable resource for teachers, students, and specialists engaged in modern aerodynamics.
Author : Donald L. Lansing
Publisher : Unknown
Page : 48 pages
File Size : 54,9 Mb
Release : 1962
Category : Aerodynamics
ISBN : UIUC:30112106592865
Author : Robert M. Bennett
Publisher : Unknown
Page : 68 pages
File Size : 42,5 Mb
Release : 1972
Category : Aerodynamics, Supersonic
ISBN : UIUC:30112106882845
The method of integral relations is applied in a one-strip approximation to the perturbation equations governing small motions of an inclined, sharp-edged, flat surface about the mean supersonic steady flow. Algebraic expressions for low reduced-frequency aerodynamics are obtained and a set of ordinary differential equations are obtained for general oscillatory motion. Results are presented for low reduced-frequency aerodynamics and for the variation of the unsteady forces with frequency. The method gives accurate results for the aerodynamic forces at low reduced frequency which are in good agreement with available experimental data. However, for cases in which the aerodynamic forces vary rapidly with frequency, the results are qualitatively correct, but of limited accuracy. Calculations indicate that for a range of inclination angles near shock detachment such that the flow in the shock layer is low supersonic, the aerodynamic forces vary rapidly both with inclination angle and with reduced frequency.
Author : Reuben Bond,Barbara B. Packard
Publisher : Unknown
Page : 36 pages
File Size : 41,5 Mb
Release : 1961
Category : Aerodynamics, Supersonic
ISBN : UIUC:30112106742692
Linearized slender-body theory is applied to the computation of aerodynamic forces on an oscillating, or deforming, body in supersonic flow. The undeformed body is a body of revolution and the deformed body is represented by movement of a line through the centers of the cross sections which are assumed to remain circular. The time dependence is based on sinusoidal motion. For a body of vanishing thickness the slender-body theory yields the apparent mass approximation as it is obtained for incompressible crossflow around a cylinder. Both linearized slender-body theory and the apparent mass approximation are used to calculate the pitching-moment coefficients on a rigid slender body with a parabolic arc nose cone, and these coefficients are compared with some experimental results. (Author).
Author : Howard C. Curtiss Jr.,Robert H. Scanlan,Fernando Sisto
Publisher : Springer Science & Business Media
Page : 575 pages
File Size : 52,8 Mb
Release : 2013-11-11
Category : Technology & Engineering
ISBN : 9789401578585
Areader who achieves a substantial command of the material con tained in this book should be able to read with understanding most of the literature in the field. Possible exceptions may be certain special aspects of the subject such as the aeroelasticity of plates and sheIls or the use of electronic feedback control to modify aeroelastic behavior. The first author has considered the former topic in aseparate volume. The latter topic is also deserving of aseparate volume. In the first portion of the book the basic physical phenomena of divergence, control surface eflectiveness, flutter and gust response of aeronautical vehicles are treated. As an indication of the expanding scope of the field, representative examples are also drawn from the non aeronautical literature. To aid the student who is encountering these phenomena for the first time, each is introduced in the context of a simple physical model and then reconsidered systematicaIly in more compli cated models using more sophisticated mathematics.
Author : Ülgen Gülçat
Publisher : Springer Nature
Page : 445 pages
File Size : 43,8 Mb
Release : 2021-01-04
Category : Technology & Engineering
ISBN : 9783030607777
This book introduces the concept of unsteady aerodynamics and its underlying principles. The author provides the readers with a comprehensive review of the fundamental physics of free and forced unsteadiness, the terminology and basic equations of aerodynamics ranging from incompressible flow to hypersonics. The book also covers modern topics related to the developments made in recent years, especially in relation to wing flapping for propulsion. The book is written for graduate and senior year undergraduate students in aerodynamics and also serves as a reference for experienced researchers. Each chapter includes ample examples, questions, problems and relevant references. This 3rd edition includes a new chapter about unsteady applications related to the thrust optimization, aerodynamic stability and trim because there has been much progress in unsteady applications of the flapping wing technology. In addition, further material is presented in Appendix for evaluating the stability derivatives so that no derivation of equations is left incomplete but not overdone in the text.
Author : Anonim
Publisher : Unknown
Page : 796 pages
File Size : 53,9 Mb
Release : 1970
Category : Mechanics, Applied
ISBN : UCAL:C2682431
Author : Joseph A. Drischler
Publisher : Unknown
Page : 72 pages
File Size : 50,7 Mb
Release : 1962
Category : Aerofoils
ISBN : UIUC:30112106743559
Author : Anjaneyulu Krothapalli,Charles A. Smith
Publisher : Springer Science & Business Media
Page : 752 pages
File Size : 52,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461249726
The Joint Institute for Aeronautics and Acoustics at Stanford University was established in October 1973 to provide an academic environment for long-term cooperative research between Stanford and NASA Ames Research Center. Since its establishment, the In stitute has wnducted theoretical and experimental work in the areas of aerodynamics, acoustics, fluid mechanics, flight dynamics, guid ance and control, and human factors. This research has involved Stanford faculty, research associates, graduate students, and many distinguished visitors in collaborative efforts with the research staff of NASA Ames Research Center. The occasion of the Institute's tenth anniversary was used to reflect back on where that research has brought us, and to consider where our endeavors should be directed next. Thus, an International Symposium was held to review recent advances in the fields relevant to the activities of the Institute and to discuss the areas of research to be undertaken in the future. This anniversary was also chosen a.."1 an opportunity to honor one of the Institute's founders and its di rector, Professor Krishnamurty Karamcheti. It has been his creative inspiration that has provided the ideal research environment at the Joint Institute. The International Symposium on Recent Advances in Aero dynamics and Aconstics was held at Stanford University, Stanford, California, U.S.A., August 22-26, 198:~. Thirty-five distinguished scientists were invited to present a comprehensive review on the fol lowing subject areas: unsteady aerodynamics, jets and shear layers, V /STOL aircraft aerodynamics, rotor dynamics and aerodynamics,.
Author : Anonim
Publisher : Unknown
Page : 482 pages
File Size : 51,5 Mb
Release : 1972
Category : Electronic
ISBN : MINN:319510008463900
Author : Anonim
Publisher : Unknown
Page : 76 pages
File Size : 52,5 Mb
Release : 1962
Category : Aerodynamics
ISBN : UIUC:30112106592659
Author : W. Fiszdon
Publisher : Elsevier
Page : 654 pages
File Size : 42,9 Mb
Release : 2013-10-22
Category : Technology & Engineering
ISBN : 9781483149356
Fluid Dynamics Transactions, Volume 2 compiles 46 papers on fluid dynamics, a subdiscipline of fluid mechanics that deals with fluid flow. The topics discussed in this book include developments in interference theory for aeronautical applications; diffusion from sources in a turbulent boundary layer; unsteady motion of a finite wing span in a compressible medium; and wall pressure covariance and comparison with experiment. The certain classes of non-stationary axially symmetric flows in magneto–gas–dynamics; description of the phenomenon of secondary flows in curved channels by means of convection of rotation lines; and some variational problems of gas dynamics are also deliberated in this text. This publication is a good reference for physicists and students researching on the natural science of fluids in motion.