| 快速涡方法中自适应树算法与涡量插值方法的研究 |
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| 引用本文： | 苏甲,朱德祥,刘晓东. 快速涡方法中自适应树算法与涡量插值方法的研究[J]. 水动力学研究与进展(A辑), 2010, 25(2). DOI: 10.3969/j.issn.1000-4874.2010.02.009 |
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| 作者姓名： | 苏甲 朱德祥 刘晓东 |
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| 作者单位： | 1. 中国船舶科学研究中心,上海,200011
2. 中国船舶科学研究中心,上海200011上海市计算技术研究所,上海200040 |
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| 摘 要： | 快速涡方法计算过程中占用过多内存资源,网格重置时用的插值方法具有一定的缺陷。该文通过预先判断自适应树节点数量等方式,生成新的自适应树构造方法;通过利用面积权重和距离相结合的方式重新构造了涡量插值方法。计算结果表明,改进的涡方法得到的计算结果更加精确,同时大大节省了计算所需的内存空间。
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| 关 键 词： | 涡方法 计算消耗 突然启动圆柱绕流 自适应算法 插值方法 |
Research on the self-adaptive tree construction scheme and vortex remeshing method in fast vortex method |
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| SU Jia,ZHU De-xiang,LIU Xiao-dong. Research on the self-adaptive tree construction scheme and vortex remeshing method in fast vortex method[J]. Chinese Journal of Hydrodynamics, 2010, 25(2). DOI: 10.3969/j.issn.1000-4874.2010.02.009 |
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| Authors: | SU Jia ZHU De-xiang LIU Xiao-dong |
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| Affiliation: | SU Jia1,ZHU De-xiang1,2,LIU Xiao-dong1 (1. China Ship Science Research Center,Shanghai 200011,China,2. Shanghai Institute of Computing Technology,Shanghai 200040,China) |
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| Abstract: | The computational vortex method has some disadvantages of the vortex remeshing and occupying too much memory space. A new scheme of self-adaptive tree structure has been established by mainly estimating the sum of the tree nodes at earlier stage and forming a new vortex interpolation method based on the area weigh and distance. The final result shows that the modified vortex method can gain a more accurate computational result and greatly reduce the memory space occupied during the computation. |
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| Keywords: | vortex method computational cost impulsively started circular cylinder self-adaptive scheme interpolation method |
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