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在综合利用矩量法(method of moments, MoM)和物理光学(physical optics, PO)方法的过程中, 要精准识别和划分PO位置处于点光源照射情况下的暗区和亮区。传统的识别划分手段的时间复杂度为O(N2), 当面片数量N增多时, 所需的时间呈现出急剧增长的趋势。文中应用八叉树和后向追踪算法, 对PO亮区判断过程进行加速, 可将时间复杂度由N2降为NlgN。由于计算PO区...
PLUME-MoM 1.0: A new integral model of volcanic plumes based on the method of moments
PLUME-MoM moments
2015/8/11
In this paper a new integral mathematical model
for volcanic plumes, named PLUME-MoM, is presented.
The model describes the steady-state dynamics of a plume
in a 3-D coordinate system, accounting f...