Thin airfoil theory, as studied in class, provides a simple means of calculating the lift coefficient for an airfoil, provided several assumptions are satisfied. Do you think 200% more lift is realistic by making zo/c larger yet, and why? If the angle of attack is to be 3 degrees, determine how large zo/c should be in order for this airfoil to produce 50% more lift than a symmetric airfoil would at the same angle of attack. (d) Consider a thin airfoil with the camber line profile: (c) Make an annotated sketch that compares the lift curves of symmetric and cambered airfoils. (b) In the theory development, there is an expression:Ĭan you explain what is the physical meaning of Γ, what is x, what is θ, and how are the two minus signs on the right consistent with our knowledge of the properties of a vortex sheet placed along the chord line? (a) Make a list of the key assumptions as you know them. SOLVED: Thin airfoil theory, as studied in class, provides a simple means of calculating the lift coefficient for an airfoil, provided several assumptions are satisfied.
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