Page 8 - Aerodynamics for Engineering Students

Contents

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Preface xlll

1 Basic concepts and defdtions 1
Preamble 1
1.1 Units and dimensions 1
1.1.1 Fundamental dimensions and units 2
1.1.2 Fractions and multiples 2
1.1.3 Units of other physical quantities 3
1.1.4 Imperial units 4
1.2 Relevant properties 4
1.2.1 Forms of matter 4
1.2.2 Fluids 5
1.2.3 Pressure 5
1.2.4 Temperature 8
1.2.5 Density 8
1.2.6 Viscosity 8
1.2.7 Speed of sound and bulk elasticity 10
1.2.8 Thermodynamic properties 11
1.3 Aeronautical definitions 15
1.3.1 Wing geometry 15
1.3.2 Aerofoil geometry 17
1.4 Dimensional analysis 19
1.4.1 Fundamental principles 19
1.4.2 Dimensional analysis applied to aerodynamic force 22
1.5 Basic aerodynamics 26
1.5.1 Aerodynamic force and moment 26
1.5.2 Force and moment coefficients 28
1.5.3 Pressure distribution on an aerofoil 29
1 S.4 Pitching moment 30
1.5.5 Types of drag 35
1.5.6 Estimation of the coefficients of lift, drag and pitching
moment from the pressure distribution 38
1.5.7 Induced drag 41
1.5.8 Lift-dependent drag 44
1 S.9 Aerofoil characteristics 44
Exercises 50