The Calculation of a Stratford-Curle Diffusion Curve on a Uniform Rectangular Mesh to avoid Boundary layer Separation.

This paper extends the calculation method of Curle for flows in which a Blassius type boundary layer reacts to a sharp adverse pressure gradient. The combined Stratford-Curle diffusion curve is applied on a uniform rectangular mesh which arises naturally when the independent variables modeling the flow field are the stream function Psi(x,y)and the velocity potential function phi(x, y) with the method not being restricted to irrotational flow only. In the case of rotational flow the function phi(x, y) does not represent the velocity potential does represent a function that is orthogonal to the streamlines. The resulting technique gives rise to a system of non-linear equations and Newton´s method is used to solve the arising system.