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本文应用泥石流的结构两相流模型对各类泥石流的运动机理进行探讨,并成功地解释了泥石流运动中的一系列特殊现象,如可能出现的颗粒浓度“上大下小”型分布、泥石流垂线速度的“反S”型分布、泥石流中颗粒脉动速度分布变化的特殊性、泥石流的输移特性以及在一定条件下出现的“流核”现象,等等。模型计算结果得到了实验资料的验证。
In this paper, the two-phase flow model of debris flow is used to discuss the movement mechanism of various debris flows, and a series of special phenomena in debris flow movement are successfully explained. For example, the distribution of particle size “ The ”anti-S“ distribution of linear velocity, the particularity of the variation of particle pulsation velocity distribution in debris flow, the transport characteristics of debris flow and the ”flow core" phenomenon under certain conditions. The result of model calculation has been verified by experimental data.