【摘要】 以结构二相流模型为基础,建立了二维粘性泥石流运动堆积的数学模型。模型采用三角网格的有限差分方法,具有计算效率高、边界处理精度高的优点。针对粘性泥石流运动速度快、龙头部位前缘坡度陡的特性,简述了计算中的动边界处理及泥石流停积条件的处理方法。以云南东川蒋家沟泥石流堆积试验为例,模拟了不同来流补给量下粘性泥石流的运动堆积过程。更多还原

【Abstract】 This paper provides a new method for the computation of viscous debris flows.Based on the concept of two-phase flows,a 2-D numerical model for the debris flow is established by finite difference method with triangular mesh.The model was applied to an experiment of debris flow.The results show that the model has a good ability to simulate the whole processes of accumulation of viscous debris flows.更多还原