ABSTRACT
It may be demonstrated mathematically1 that whatever the boundary profile the network will always be composed of squares. Furthermore, for any given boundary conditions and initial spacing, only one network solution is possible. However, because the theory assumes an infinite
number of stream lines and only a finite number can be conveniently reproduced, the actual meshes in the non-uniform zone are only approxi mately squared. This means, in effect, that the sides may be curved although the intersections must always be at right angles.
