Airfoil Design and Data

12.07.1991

Englisch

9783662026489

Springer Berlin

Nein

Richard Eppler

562

Softcover reprint of the original 1st edition 1990

Taschenbuch

flow, lift, distribution, airplane, subsonic flow, computer, Unterschallprofile, design, Airfoils, boundary layer

TRC - Fahrzeugbau TRCS - Kfz-Handwerk PHD - Klassische Mechanik TBD - Konstruktion, Entwurf TGP - Fertigungstechnik und Ingenieurwesen TH - Energietechnik, Elektrotechnik und Energiemaschinenbau

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.

244 mm

17 cm