What is the major effect of the leading edge radius on airfoil performance?
Influence of t/c on drag coefficient Cdmin increases with increasing t/c Influence of t/c on lift coefficient Clmax increases with increasing t/c up to t/c in the order of 13-15% at t/c > 15% begins to Clmax decrease. Influence of t/c on lift coefficient Clmax increases with increasing t/c up to t/c in the order of 13-15% at t/c > 15% begins to Clmax decrease.ġ6 Aerofoil Thickness What is the influence of thickness? What are some of the geometric factors that influence the aerodynamic performance of an airfoil? Thickness to chord ratio, t/c Location of max t/c Nose radius Camber Maximum camber Location of max camberġ4 Aerofoil Thickness What is the influence of thickness?ġ5 Aerofoil Thickness What is the influence of thickness? What aerodynamic characteristics are we interested in knowing? What are the geometric parameters that describe an airfoil? What are the factors that influence the aerodynamic characteristics?ġ0 Lift Coefficient versus angle of attackġ3 Influence of Airfoil Geometry on airfoil aerodynamics What aerodynamic characteristics are we interested in knowing? What are the geometric parameters that describe an airfoil? What aerodynamic characteristics are we interested in knowing? Cl = (Lift force/unit span)/(q c) Cd = (Drag force/unit span)/(q c) Cm = (Pitching moment/unit span)/(q c2) where q is the dynamic pressure, q = 0.5 r V2, and c is the airfoil chord
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