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摘要：现有三棱柱网格的生成方法因不能避免负体积现象，从而使计算流体动力学（CFD）仿真分析失败，为此，提出三棱柱CFD网格生成方法，将三角形物面网格分为多个特征域与辅助域，创建特征框架与辅助框架以及域网格点的参数化模型，生成满意拉伸比的边界层三棱柱网格，避免了四面体在边界层网格填充效率不高的缺点。多个应用实例表明文中方法的正确有效，故有实用价值。
关键词：三棱柱网格；三角形网格；计算流体动力学
中图分类号：TP391 文献标识码：A 文章编号：1009-3044（2015）13-0244-03
Abstract： A method of generating prismatic grids for computational fluid dynamics（CFD）， is presented to avoid terminating CFD calculation caused by prismatic grids of negative volume. In this method， a triangle mesh model is divided into several feature shells and assistant shells， on which the corresponding feature frames
关键词：三棱柱网格；三角形网格；计算流体动力学
中图分类号：TP391 文献标识码：A 文章编号：1009-3044（2015）13-0244-03
Abstract： A method of generating prismatic grids for computational fluid dynamics（CFD）， is presented to avoid terminating CFD calculation caused by prismatic grids of negative volume. In this method， a triangle mesh model is divided into several feature shells and assistant shells， on which the corresponding feature frames