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FlowMaster 4D-PTV/抖盒子（Shake-the-Box, STB）是一种先进的3D拉格朗日粒子跟踪测速方法，适用于高浓度示踪颗粒流体的高空间分辨流场测量。与基于体像素的层析PIV方法不同，STB方法通过粒子迭代重构（IPR）结合4D-PTV算法，以更快的速度实现更高精度的粒子轨迹重构。

湍流本质上具有三维（3D）立体结构属性。普通的二维（2D）包 括采用激光照明的成像测量无法在所有三个空间维度上分辨湍流 的结构。而利用多视角成像信息，采用层析重构技术则可以在三 个空间维度上同时捕捉记录复杂流动的瞬态结构。应用针对体像 素的 ...