Subsonic aerodynamics
Auteur : PARASCHIVOIU Ion
Chapter 1 - General principles and basics
Introduction. Aerodynomics: definition and objectives. Theoretical and experimental methods in aerodynomics. Basic concepts. General equations for the movement of a fluid. Parficular flows. Dimensionless numbers and similarity. Fundamental variables in aerodynamics. Aerodynamic forces and moments
Chapter 2 - Irrotational flows of the ideal fluid
Definition of irrotational flow. Plane irrotational flow. Helmholtz's equation. Laplace equation. Circulation. Simple irrotational flows in two dimensions. Method of superposition of several flows. Blasius laws. Circle theorem. Example applications. Method of images. Exercises
Chapter 3 - Axis-symmetric flows
Irrotational flow in three dimensions. Flow around simple bodies of revolution. Potential flow around bodies. Considerations for bodies having simple geometry. Exercises
Chapter 4 - Airfoils in subsonic flow
Geometric features of airfoils. Coefficient of pressure. Complex variables and conformal transformations for the study of airfoils. Mechanism of lift (Kutta?Joukowski theorem). Thin airfoil theory. Numerical methods for the calculation of flow around airfoils. Panel methods for the calculation of flow around airfoils. Exercises
Chapter 5 - Finite-span wing
Geometric features. Aerodynamic features. Laws of vortex motion. Schematic of flow around a wing of finite span. Theory of finite-span wing based on the method of distribution of vortices. Exercises
Chapter 6 - Panel method in three dimensions applied to finite-span wings
Panel method using a line-distribution of doublets. Internal singularity method. Surface singularity method for a wing. Calculation of potential on Sp. Distribution of panels on the wing. Velocity induced by a distribution of sources. Velocity induced by a horseshoe-shaped vote and a uniform line of sources
Chapter 7 - Propeller Theory
Geometry of the helix and the blade element. Aerodynamic working of the propulsive propellers. Theory of Froude. Blade element theory. Vortex theory of propellers. Corrections for camber and thickness of the blade. Exercices
Chapter 8 - Aerodynamics of the helicopter
Principle of helicopter flight. Aerodynamics of the rotor. Exercises
Chapter 9 - Notions of experimental aerodynamics
Aim of experiments and the principle of reciprocity. Means of tests. Convergent nozzles of subsonic wind tunnels. Force measurement and the aerodynamic balances. Pressure measurement. Velocity measurement. Observation of flows by visualization. Exercices
Appendices
Appendix A: Algebra and vector analysis
Appendix B: Equations of motion in different reference frames
Appendix C: Complex numbers
Appendix D: Aerodynamic profiles
Appendix E: Equivalence between doublet and vortex
Appendix F: Physical dimensions and units of measurement
Appendix G: Butterfly wings and wind turbines
Answers to the exercises
Supplementary exercises
Index
This book presents the foundations of theory and practice related to aerodynamic phenomena and is intended for students and engineers specializing in the field of aeronautics. It is also of interest to students and engineers in mechanical engineering desiring to advance in this field.
Date de parution : 11-2003
Ouvrage de 528 p.
18x23 cm