A Vortex Method for Predicting Unsteady Flow and Boundary Layer Development Around an Airfoil
This paper presents a two-dimensional vortex method for simulation of boundary layer development and unsteady flow around an airfoil, in which both laminar and turbulent boundary layers are treated. By using even a rather small computer, reasonable prediction of starting flows around an airfoil of NACA23012 are obtained for various angles of attack either with or without boundary layer separation. The emphasis in the following article will be on the explanation of the mathematical model and the presentation of the predicted flow characteristics.
KeywordsBoundary Layer Turbulent Boundary Layer Unsteady Flow Laminar Boundary Layer Attack Angle
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