The vortex distribution along the wing will simulate the actual properties of the wing and allow to have a simple approach of calculating the properties of the wing. This hypothesis, better known as thin airfoil theory, was first conceived by Max Munk which was later refined by the team led by Hermann Glauert in 1920s. The circulation and vorticity are the two primary measures of rotation in a fluid. The primary limitation on the application of thin airfoil theory is the assumption of inviscid flow (which is actually has been shown to be a fairly valid. Circulation is a scalar quantity, obtained through the integration, which is a macroscopic measure of rotation over a finite region in the fluid flow, whereas vorticity is a vector field which provides a microscopic measure of the rotation at any point in the fluid.Ĭirculation is defined as the line integral of the tangential velocity component around a closed curve fixed in the flow field.
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