Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
Wing Design for High Subsonic and Transonic Flow Supercritical Wings
Author: The Design of Supercritical Wings by the Use of Three-dimensional Transonic Theory
Author: Michael J. MannPublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 40
Book Description
Historical Background and Design Evolution of the Transonic Aircraft Technology Supercritical Wing
Author: Theodore G. AyersPublisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 38
Book Description
Supercritical Wing Sections III
Author: F. BauerPublisher: Springer Science & Business Media
ISBN: 3642488528
Category : Business & Economics
Languages : en
Pages : 188
Book Description
The purpose of this book is to survey computational flow research on the design and analysis of supercritical wing sections supported by the National Aeronautics and Space Administration at the Energy Research and Development Administration Mathematics and Computing Laboratory of New York University. The work was performed under NASA Grants NGR 33-016-167 and NGR 33-016-201 and ERDA Contract EY-76-C-02-3077. Computer programs to be listed and described have applications in the study of flight of modern aircraft at high sub sonic speeds. One of the codes generates cascades of shockless tran sonic airfoi~s that are expected to increase significantly the effici ency of compressors and turbines. Good simulation of physically observed flows has been achieved. This work is a sequel to two earlier books [1,2] published by Springer-Verlag under similar titles that we shall refer to as Volumes I and II. New York November 1977 TABLE OF CONTENTS I. INTRODUCTION 1 1. Shockless Airfoils and Supercritical Wing Sections 1 2. Differential Equations of Gas Dynamics 2 II. THE METHOD OF COMPLEX CHARACTERISTICS 5 1. A New Boundary Value Problem 5 2. Topology of the Paths of Integration 8 3. Iterative Scheme for the Map Function 9 III. TRANSONIC AIRFOIL DESIGN CODE 10 1. Isolated Airfoils 10 2. Compressor Cascades 12 3. Turbine Cascades 13 4. Comparison with Experiment 14 IV. TWO-DU1ENSIONAL ANALYSIS CODE 16 1. Wave Drag 16 2. A Fast Solver 19 3. Remarks about Three-Dimensional Flow 24 V. REFERENCES 26 VI.
The Design of Supercritical Wings by the Use of Three-Dimensional Transonic Theory
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781725017184
Category :
Languages : en
Pages : 34
Book Description
A procedure was developed for the design of transonic wings by the iterative use of three dimensional, inviscid, transonic analysis methods. The procedure was based on simple principles of supersonic flow and provided the designer with a set of guidelines for the systematic alteration of wing profile shapes to achieve some desired pressure distribution. The method was generally applicable to wing design at conditions involving a large region of supercriterical flow. To illustrate the method, it was applied to the design of a wing for a supercritical maneuvering fighter that operates at high lift and transonic Mach number. The wing profiles were altered to produce a large region of supercritical flow which was terminated by a weak shock wave. The spanwise variation of drag of this wing and some principles for selecting the streamwise pressure distribution are also discussed. Mann, M. J. Langley Research Center NASA-TP-1400, L-12552 RTOP 505-11-13-03...
A Method for the Design of Transonic Flexible Wings
Author: Leigh Ann SmithPublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 48
Book Description
Application of Numerical Optimization to the Design of Wings with Specified Pressure Distributions
Author: H. P. HaneyPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 120
Book Description
A Transonic-small-disturbance Wing Design Methodology
Author: Pamela S. PhillipsPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 36
Book Description
Theoretical and Applied Aerodynamics
Author: J. J. ChattotPublisher: Springer
ISBN: 9401798257
Category : Science
Languages : en
Pages : 625
Book Description
This book covers classical and modern aerodynamics, theories and related numerical methods, for senior and first-year graduate engineering students, including: -The classical potential (incompressible) flow theories for low speed aerodynamics of thin airfoils and high and low aspect ratio wings. - The linearized theories for compressible subsonic and supersonic aerodynamics. - The nonlinear transonic small disturbance potential flow theory, including supercritical wing sections, the extended transonic area rule with lift effect, transonic lifting line and swept or oblique wings to minimize wave drag. Unsteady flow is also briefly discussed. Numerical simulations based on relaxation mixed-finite difference methods are presented and explained. - Boundary layer theory for all Mach number regimes and viscous/inviscid interaction procedures used in practical aerodynamics calculations. There are also four chapters covering special topics, including wind turbines and propellers, airplane design, flow analogies and hypersonic (rotational) flows. A unique feature of the book is its ten self-tests and their solutions as well as an appendix on special techniques of functions of complex variables, method of characteristics and conservation laws and shock waves. The book is the culmination of two courses taught every year by the two authors for the last two decades to seniors and first-year graduate students of aerospace engineering at UC Davis.
A Transonic-small-disturbance Wing Design Methodology
Author: Pamela S. PhillipsPublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 36
Book Description