Abstract
Algorithms to redistribute, refine, remap, and optimize structured surface grids utilized in computational fluid dynamics (CFD) simulations involving complex regimes are presented. The non-uniform rational B-spline (NURBS) representation is utilized for defining parametric surfaces. A semi-automatic remapping algorithm presented here results in a simplified surface grid generation process with significant reduction in generation labor time for surfaces involving holes, gaps and interior objects. A hermite transfinite interpolation method and elliptic generation systems are enhanced to optimize (in view of orthogonality and smoothness) surface grids. Computational examples are presented to demonstrate the success of these methodologies.
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