Help in Sorting out grid generator Leading problem
 

Hi,

I have written a simple h-grid generator for cascades. Now I am facing a problem at leading edge, the finner the grid the shape is more distorted. I guess it is something to do with spline equation I am using. It is based on the subroutine provide in Numerical Recipies. Actually it requires to calculate dy/dx at first and last points of spline. I guess this is the source of error. Can omebody help in fixing the problem.

Thanks and Regards

Apurva Shukla