Page 123 - Basic Structured Grid Generation

112 Basic Structured Grid Generation

4.6.3 Subdirectory: Book/bilinear.gds

This subdirectory contains only one file.

1. File: bilinear.f
This generates a two-dimensional planar grid in a straight-sided quadrilateral using
bilinear interpolation given by

r(ξ, η) = (1 − ξ)(1 − η)r bl + (1 − ξ)ηr tl + ξ(1 − η)r br + ξηr tr ,

Fig. 4.29 Transfinite interpolation.

Fig. 4.30 Transfinite interpolation.

Fig. 4.31 Two-boundary technique.