3d spline interpolation -- CFD Online Discussion Forums

January 7, 2002, 04:38	3d spline interpolation	#1
Matthias Guest Posts: n/a	Dear all, I have to implement a soubroutine which interpolates the 3d velocity field {u, v, w} from a not equal spaced grid 1 to grid 2 where h is the grid size and h_1 smaller than h_2. In order to ensure a high order of accuracy I would like to use a spline interpolation. But I could not found the mathematics for the 3d approximation. Also google can not help me satisfactory. Has anybody the mathematics for me or can refer to a book. Thanks in advance. Matthias

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