快速涡方法中自适应树算法与涡量插值方法的研究  

Research on the self-adaptive tree construction scheme and vortex remeshing method in fast vortex method

作　　者：苏甲[1] 朱德祥[1,2] 刘晓东[1] 

机构地区：[1]中国船舶科学研究中心,上海200011 [2]上海市计算技术研究所,上海200040

出　　处：《水动力学研究与进展（A辑）》2010年第2期199-205,共7页Chinese Journal of Hydrodynamics

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。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 stun 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.

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 

分 类 号：O357.1[理学—流体力学]