高效计算网格壁面距离的KD树方法
发布时间：2018-09-05 09:28
【摘要】：计算流体动力学的一些领域中经常要用到流场点到壁面的最小距离,为了提高壁面距离计算的精度和效率,将KD树应用于非结构网格的壁面距离计算,计算了若干三维外形的壁面距离,结果表明:基于KD树的网格壁面距离计算方法鲁棒性好,计算效率和结果精度高,适应复杂外形的能力强;算法的通用性好,可以拓展应用到多种网格类型。
[Abstract]:In order to improve the accuracy and efficiency of wall distance calculation, KD tree is applied to calculate the wall distance of unstructured grid in order to improve the accuracy and efficiency of wall distance calculation, in order to improve the accuracy and efficiency of wall distance calculation, the minimum distance between flow field point and wall surface is often used in some fields of computational fluid dynamics. The results show that the method based on KD tree has good robustness, high calculation efficiency and precision, strong ability to adapt to complex shapes, and good generality of the algorithm. Can be extended to a variety of grid types.
【作者单位】： 浙江大学航空航天学院;上海宇航系统工程研究所;
【基金】：国家重点基础研究发展计划资助项目(2014CB340201)
【分类号】：O35
[Abstract]:In order to improve the accuracy and efficiency of wall distance calculation, KD tree is applied to calculate the wall distance of unstructured grid in order to improve the accuracy and efficiency of wall distance calculation, in order to improve the accuracy and efficiency of wall distance calculation, the minimum distance between flow field point and wall surface is often used in some fields of computational fluid dynamics. The results show that the method based on KD tree has good robustness, high calculation efficiency and precision, strong ability to adapt to complex shapes, and good generality of the algorithm. Can be extended to a variety of grid types.
【作者单位】： 浙江大学航空航天学院;上海宇航系统工程研究所;
【基金】：国家重点基础研究发展计划资助项目(2014CB340201)
【分类号】：O35
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