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Advances in Distance-Based Hole Cuts on Overset Grids

机译：基于距离的过孔网格切割的研究进展

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An automatic and efficient method to determine appropriate hole cuts based on distances to the wall and donor stencil maps for overset grids is presented. A new robust procedure is developed to create a closed surface triangulation representation of each geometric component for accurate determination of the minimum hole. Hole boundaries are then displaced away from the tight grid-spacing regions near solid walls to allow grid overlap to occur away from the walls where cell sizes from neighboring grids are more comparable. The placement of hole boundaries is efficiently determined using a mid-distance rule and Cartesian maps of potential valid donor stencils with minimal user input. Application of this procedure typically results in a spatially-variable offset of the hole boundaries from the minimum hole with only a small number of orphan points remaining. Test cases on complex configurations are presented to demonstrate the new scheme.
机译：提出了一种自动高效的方法，可根据距墙的距离和供体栅格模板的施主模板图确定合适的孔洞。开发了一种新的鲁棒性程序，以创建每个几何组件的闭合表面三角剖分表示形式，以精确确定最小孔。然后，将孔边界移离实体壁附近的紧密网格间隔区域，以使网格重叠发生在壁上，而相邻壁之间的像元大小更具有可比性。使用中距离规则和潜在有效供体模板的笛卡尔图，只需最少的用户输入，即可有效地确定孔边界的位置。应用此程序通常会导致孔边界与最小孔的空间可变偏移，仅保留少量的孤立点。提出了关于复杂配置的测试案例，以演示新方案。

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