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Topmaker: a technique for automatic multi-block topology generation using the medial axis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Heidmann, James D. Technical Monitor Rigby, David L. |
| Copyright Year | 2004 |
| Description | A two-dimensional multi-block topology generation technique has been developed. Very general configurations are addressable by the technique. A configuration is defined by a collection of non-intersecting closed curves, which will be referred to as loops. More than a single loop implies that holes exist in the domain, which poses no problem. This technique requires only the medial vertices and the touch points that define each vertex. From the information about the medial vertices, the connectivity between medial vertices is generated. The physical shape of the medial edge is not required. By applying a few simple rules to each medial edge, the multiblock topology is generated with no user intervention required. The resulting topologies contain only the level of complexity dictated by the configurations. Grid lines remain attached to the boundary except at sharp concave turns where a change in index family is introduced as would be desired. Keeping grid lines attached to the boundary is especially important in the area of computational fluid dynamics where highly clustered grids are used near no-slip boundaries. This technique is simple and robust and can easily be incorporated into the overall grid generation process. |
| File Size | 382059 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040073477 |
| Archival Resource Key | ark:/13960/t56f0t36p |
| Language | English |
| Publisher Date | 2004-04-01 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Multiblock Grids Computational Fluid Dynamics Apexes Two Dimensional Models Topology Boundaries Computational Grids Grid Generation Mathematics Touch Loop Transfer Functions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
