PRISMATIC GRID GENERATION FOR 3-DIMENSIONAL COMPLEX GEOMETRIES
PRISMATIC GRID GENERATION FOR 3-DIMENSIONAL COMPLEX GEOMETRIES
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DOI：
10.2514/3.11858
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发表时间：
1993-10-01
期刊：
影响因子：
2.5
通讯作者：
WARD, S
中科院分区：
文献类型：
--
作者：
KALLINDERIS, Y;WARD, S
The paper describes generation of semiunstructured prismatic grids for three-dimensional complex geometries. A new method of generation is presented, which couples both algebraic and elliptic steps. This combination yields low computation cost, as well as smoothness of the grid. Main advantages of the developed grid generator are its direct control of grid orthogonality and spacing, as well as its generality for treatment of three-dimensional geometries. The method marches a surface consisting of triangular faces away from the body surface. Employment of prismatic elements is a relatively new approach toward three-dimensional, complex geometry numerical simulations of viscous flows. A body surface is covered with triangles, which gives the geometric flexibility, whereas the structure of the mesh in the direction normal to the surface provides better resolution of the viscous regions. An F-16A aircraft geometry was included in the applications to investigate efficiency and to demonstrate robustness of the method in handling relatively complex topologies. Grid generation time for the entire aircraft domain was of the order of minutes on a workstation.
