Preliminary design and analysis of procedures for the numerical generation of 3D block-structured grids

Boerstoel, J.W.

Preliminary design and analysis of procedures for the numerical generation of 3D block-structured grids

Report (1986)

Authors

Computational fluid dynamics Finite volume method Cells Three dimensional flow Computational grids Aircraft configurations Euler equations of motions Parallel processing (computers) Elliptic differential equations Hexahedrons Dlrichlet problem

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Published Date

13-08-1986

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NLR-TR 86102 U

Abstract

An analysis of various alternative approaches in grid generation is presented. A grid-generation procedure for complex aircraft configurations could be based on a combination of three subprocesses, . decomposition of the flow domain into about 100 hexahedronal blocks, . trilineair transfinite interpolation to generate initial grid point distributions, and . elliptic mesh-size tuning and smoothing. To get insight into this procedure, mathematical models of these three subprocesses were worked out and analyzed. The results of the analysis are technical concepts required or desirable in the grid-generation procedure. These concepts are presented.

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