On the Numerical Solution to the Integral Equation for the Calculation of the Flow of an Incompressible Fluid Through a Rectilinear Cascade of Thick Highly Cambered Profiles, Using the Method of Singularities

摘要

A method for determining the velocity distribution along a thick, highly cambered airfoil in a rectilinear cascade in an incompressible potential flow is presented. The basis of the calculations is Imbach's integral equation, a method of singularities. Furthermore, the condition is set that the drag of an airfoil should be zero. The method is applied to the so-called 'ETH' profile as indicated in Roeder's dissertation. The velocity distribution thus calculated appears to match very well the measured distribution along the whole profile contour, the trailing edge region included.