krainaksiazek high speed wing theory 20107000

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Theory of Wing Sections - 2826829063

117,33 zł

Theory of Wing Sections Dover Publications

Książki / Literatura obcojęzyczna

PREFACE TO DOVER EDITION PREFACE 1. THE SIGNIFICANCE OF WING-SECTION CHARACTERISTICS Symbols. The Forces on Wings. Effect of Aspect Ratio. Application of Section Data to Monoplane Wings: a. Basic Concepts of Lifting-line Theory. b. Solutions for Linear Lift Curves. c. Generalized Solution. Applicability of Section Data. 2. SIMPLE TWO-DIMENSIONAL FLOWS Symbols. Introduction. Concept of a Perfect Fluid. Equations of Motion. Description of Flow Patterns. Simple Two-dimensional Flows: a. Uniform Stream. b. Sources and Sinks. c. Doublets. d. Circular Cylinder in a Uniform Stream. e. Vortex. f. Circular Cylinder with Circulation. 3. THEORY OF WING SECTIONS OF FINITE THICKNESS Symbols. Introduction. Complex Variables. Conformal Transformations. Transformation of a Circle into a Wing Section. Flow about Arbitrary Wing Sections. Empirical Modification of the Theory. Design of Wing Sections. 4. THEORY OF THIN WING SECTIONS Symbols. Basic Concepts. Angle of Zero Lift and Pitching Moment. Design of Mean Lines. Engineering Applications of Section Theory. 5. THE EFFECTS OF VISCOSITY Symbols. Concept of Reynolds Number and Boundary Layer. Flow around Wing Sections. Characteristics of the Laminar Layer. Laminar Skin Friction. Momentum Relation. Laminar Separation. Turbulent Flow in Pipes. Turburlent Skin Friction. Calculation of Thickness of the Turbulent Layer. Turbulent Separation. Transition from Laminar to Turbulent Flow. Calculation of Profile Drag. Effect of Mach Number on Skin Friction. 6. FAMILIES OF WING SECTIONS Symbols. Introduction. Method of Combining Mean Lines and Thickness Distributions. NACA Four-digit Wing Sections: a. Thickness Distributions. b. Mean Lines. c. Numbering System. d. Approximate Theoretical Characteristics. NACA Five-digit Wing Sections: a. Thickness Distributions. b. Mean Lines. c. Numbering System. d. Approximate Theoretical Characteristics. Modified NACA Four-and Five-digit Series Wing Sections. NACA 1-Series Wing Sections: a. Thickness Distributions. b. Mean Lines. c. Numbering System. d. Approximate Theoretical Characteristics. NACA 6-Series Wing Sections: a. Thickness Distributions. b. Mean Lines. c. Numbering System. d. Approximate Theoretical Characteristics. NACA 7-Series Wing Sections. Special Combinations of Thickness and Camber. 7. EXPERIMENTAL CHARACTERISTICS OF WING SECTIONS. Symbols. Introduction. Standard Aerodynamic Characteristics. Lift Characteristics: a. Angle of Zero Lift. b. Lift-curve Slope. c. Maximum Lift. d. Effect of Surface Condition on Lift Characteristics. Drag Characteristics: a. Minimum Drag of Smooth Wing Sections. b. Variation of Profile Drag with Lift Coefficient. c. Effect of Surface Irregularities on Drag Characteristics. d. Unconservative Wing Sections. Pitching moment Characteristics. 8. HIGH-LIFT DEVICES Symbols. Introduction. Plain Flaps. Split Flaps. Slotted Flaps: a. Description of Slotted Flaps. b. Single-slotted Flaps. c. External-aifoil Flaps. d. Double-slotted Flaps. Leading-edge High-lift Devices: a. Slats. b. Slots. c. Leading-edge Flaps. Boundary-layer Control. The Chordwise Load Distribution over Flapped Wing Sections. 9. EFFECTS OF COMPRESSIBILITY AT SUBSONIC SPEEDS Symbols. Introduction. Steady Flow through a Stream Tube: a. Adiabatic Law b. Velocity of Sound c. Bernoulli's Equation for Compressible Flow. d. Cross-sectional Areas and Pressures in a Stream Tube. e. Relations for a Normal Shock. First-order Compressibility Effects: a. Glauert-Prandtl Rule b. Effect of Mach Number on the Pressure Coefficient. Flow about Wing Sections at High Speed: a. Flow at Subcritical Mach Numbers. b. Flow at Supercritical Mach Numbers. Experimental Wing Characteristics at High Speeds: a. Lift Characteristics. b. Drag Characteristics. c. Moment Characteristics. Wings for High-speed Applications. REFERENCES APPENDIX I. Basic Thickness Forms II. Mean Lines III. Airfoil Ordinates IV. Aerodynamic Characteristics of Wing Sections INDEX


The Theory of Flight - 2837115600

126,62 zł

The Theory of Flight Dover Publications

Książki / Literatura obcojęzyczna

Preface Part One EQUILIBRIUM AND STEADY FLOW IN THE ATMOSPHERE CHAPTER I. THE ATMOSPHERE AT REST 1. Density. Pressure. Equation of State 2. Equilibrium of a Perfect Gas under the Influence of Gravity 3. The Standard Atmosphere 4. Determination of True Altitude. Reduction of a Climb to Standard Atmosphere 5. Troposphere and Stratosphere. Influence of Humidity CHAPTER II. BERNOULLI'S EQUATION. ROTATION AND CIRCULATION 1. Steady Motion 2. Bernoulli's Equation 3. Dynamic Pressure 4. Variation of Total Head across the Streamlines. Rotation 5. Circulation and Rotation 6. The Bicirculating Motion CHAPTER III. MOMENTUM AND ENERGY EQUATIONS 1. Flux of Momentum in Steady Flow 2. Momentum Equation for Steady Flow 3. Moment of Momentum 4. Quasi-steady Flow. Relative Flow 5. Energy Equation CHAPTER IV. PERFECT AND VISCOUS FLUIDS. TYPES OF FLOW 1. Viscosity 2. Law of Similtude. Reynolds Number 3. Laminar and Turbulent Motion 4. Continuous and Discontinuous Motion 5. Boundary Layer "CHAPTER V. AIR RESISTANCE, OR PARASITE DRAG" 1. Definitions 2. Bluff Bodies 3. Round Bodies 4. Streamlined Bodies 5. Skin Friction 6. Parasite Drag of Major Airplane Components Part Two THE AIRPLANE WING CHAPTER VI. FUNDAMENTAL NOTIONS. GEOMETRY OF WINGS 1. The Three Coefficients 2. Geometry of Airfoil Profiles. Sets of Profiles 3. Theoretically Developed Airfoil Sections 4. Geometry of Airplane Wings CHAPTER VII. EMPIRICAL AIRFOIL DATA 1. The Three Main Results 2. Influence of Aspect Ratio 3. Historical Development of wing Profiles 4. Influence of the Shape of the Profile 5. Influence of the Reynolds Number. Degree of Turbulence CHAPTER VIII. THE WING OF INFINITE SPAN 1. The Momentum Equation for Irrotational Flow 2. The Lift on an Airfoil of Infinite Span 3. The Pitching Moment of an Airfoil on Infinite Span 4. The Metacentric Parabola 5. "Vortex Sheets, Another Approach" 6. Theory of Thin Airfoils CHAPTER IX. THE WING OF FINITE SPAN 1. Curved Vortex Lines 2. Vortex Sheet and Discontinuity Surface 3. The Flow Past a Wing of Finite Span 4. Prandtl's Wing Theory 5. Elliptic Lift Distribution 6. Biplane Theory 7. General Lift Distribution CHAPTER X. ADDITIONAL FACTS ABOUT WINGS 1. Stalling 2. High-lift Devices 3. Pressure Distribution 4. Influence of Compressibility Part Three PROPELLER AND ENGINE CHAPTER XI. THE PROPELLER 1. Basic Concepts 2. Geometry of Propellers 3. Propeller Characteristics 4. Quantitative Analysis 5. Propeller Sets and Variable-pitch Propeller. Propeller Charts CHAPTER XII. OUTLINE OF PROPELLER THEORY 1. Blade-element Theory 2. "Momentum Theory, Basic Relations" 3. "Momentum Theory, Conclusions" 4. Modified Momentum Theory 5. The Two Theories Combined 6. Additional Remarks CHAPTER XIII. THE AIRPLANE ENGINE 1. The Engine at Sea Level 2. The Engine at Altitude 3. Engine Vibrations Part Four AIRPLANE PERFORMANCE CHAPTER XIV. THE GENERAL PERFORMANCE PROBLEM 1. Introduction 2. Power-required and Power-available Curves 3. Dimensionless Performance Analysis 4. Discussion of Sea-level Flight 5. Altitude Flight CHAPTER XV. ANALYTICAL METHODS OF PERFORMANCE COMPUTATION 1. Analytical Expressions for the Power Curves 2. Gliding. Level Flight with Given Power 3. The Ideal Airplane: Power Available Independent of Speed 4. Numerical Data. Example 5. Small Variations. Choice of Propeller 6. Power Available Varying with Speed 7. Numerical Discussion CHAPTER XVI. SPECIAL PERFORMANCE PROBLEMS 1. Range and Endurance 2. Take-off 3. Steep Gliding and Diving 4. Landing Operation. Landing Impact 5. Seaplane Problems Part Five AIRPLANE CONTROL AND STABILITY CHAPTER XVII. MOMENT EQUILBRIUM AN STATIC STABILITY 1. Pitching-moment Equilbrium 2. The Contribution to the Pitching Moment from the Tail 3. The Contribution from the Propeller and the Fuselage 4. Static Stability and Metacenter 5. Simplified Stability Discussion 6. Lateral Moments CHAPTER XVIII. NONUNIFORM FLIGHT 1. Introduction. Elementary Results 2. Lanchester's Phugoid Theory 3. Longitudinal Flight along a Given Path 4. Effect of Elevator Operation 5. Asymmetric Motion CHAPTER XIX. GENERAL THEORY OF MOTION AND STABILITY 1. The General Equations of Motion of an Airplane 2. Steady Motion. Specification of Forces 3. Theory of Dynamic Stability 4. Application to the Airplane CHAPTER XX. DYNAMIC STABILITY OF AN AIRPLANE 1. Longitudinal Stability of Level Flight 2. The Small Oscillations Following a Disturbance 3. Lateral Stability 4. Numerical Discussion 5. Final Remarks. Autorotation. Spinning BIBLIOGRAPHICAL AND HISTORICAL NOTES INDEX


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