Airfoil Design and Data

This detailed book describes a procedure for the design and analysis of subsonic airfoils. Contains 116 new airfoils for a wide range of Reynolds numbers and application requirements, including the input data for the computer code.

Inhalt
1 Introduction.- 2 Potential Flow, Analysis Mode.- 3 Potential Flow, Design Mode.- 3.1 General Considerations.- 3.2 The Complex Planes.- 3.3 The Velocity Specification on the Unit Circle.- 3.4 Specification of the Velocity Distribution in Segments.- 3.5 Main Pressure Recovery Functions.- 3.6 Conditions for Continous Velocity Distributions.- 3.7 The Closure Conditions.- 3.8 The Trailing Edge and the Leading Edge.- 3.9 The Computation of the Airfoil Coordinates.- 3.10 Common Features of the Input Data Lines.- 3.11 The Input Lines for the Airfoil Design.- 3.12 The Trailing Edge Iteration.- 3.13 General Remarks.- 4 Boundary Layer Theory.- 4.1 Fundamentals.- 4.1.1 Nondimensional Variables and Units.- 4.1.2 Similarity.- 4.1.3 The Boundary Layer Equations.- 4.2 The Computation of Laminar and Turbulent Boundary Layers.- 4.3 Boundary Layer Transition.- 4.4 The Laminar Separation Bubble.- 4.5 Total Lift, Drag, and Moment.- 4.6 The Bubble Warning.- 4.7 Single Roughness Elements.- 5 General Considerations for the Selection of the Design Parameters.- 5.1 The Laminar Region of the Airfoils.- 5.2 The Critical Reynolds Number.- 5.2.1 The Transition Ramp.- 5.2.2 Artificial Turbulators.- 5.3 The Main Pressure Recovery.- 5.3.1 The Maximum Total Amount of Pressure Recovery.- 5.3.2 The Main Pressure Recovery for Maximum Lift.- 5.3.3 The Main Pressure Recovery for Minimum Drag.- 5.3.4 The Contribution of the Main Pressure Recovery to the Stall Characteristics.- 5.3.5 The Selection of the Recovery Parameters.- 5.4 Airfoils with Flaps.- 5.5 Profiles for Maritime Applications (Hydrofoils).- 6 Airfoil Data.- 6.1 Directory.- 6.2 Older, Successfully Applied Airfoils for Different Reynolds Number Ranges.- 6.3 Airfoils for Low Reynolds Numbers.- 6.4 Airfoils for Manpowered Aircraft.- 6.5 Airfoils without Flaps for the Reynolds Number Range of Sailplanes.- 6.6 Airfoils with Flaps for Sailplanes (Gliders).- 6.7 High lift Airfoils.- 6.8 Airfoils for General Aviation Aircrafts.- 6.9 Airfoils for Acrobatic Aircraft.- 6.10 Airfoils for Tailless Airplanes.- 6.11 Airfoils for Vertical and Horizontal Tails.- 6.12 Airfoils for Propellers.- 6.13 Airfoils for Helicopter Rotor Blades.- 6.14 Hydrofoils.- 6.15 Airfoils for Non-Lifting Struts.- Appendix I: The Mathematics of the Inverse Potential Flow Method.- Appendix II: Airfoil Coordinates.- Appendix III: Airfoil Input Data.- References.

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