Three interpolating surface algorithms

i.e. bilinear

biquadratic and circular spline function radial parabolic algorithms

are provided in this programming system. The last of them is considered to be the most ideal one for interpolating surface because it has high accuracy

truly expresses the distorted flow field

and overcomes the unsmoothed joints of the biquadratic algorithm. In order to determine the intersection points between contour and network

rectangular grids of polar coordinates instead of rectangular coordinates are used. In result

many advantages for engine inlet flow field plotting can thus be achieved. This programming system can save computer time and reduce costs.