sediment diffusion meaning in English

泥沙扩散

In the suspended sediment transport model , the method of shear stress is adopted to determine the source function in the suspended sediment diffusion equation . through a series numerical experiments and statistical analyses of observed field data , a local coefficient , which can reflect the bottom material and consolidation , is introduced into the classic critical erosion velocity of the sediment
悬沙输运模型利用切应力方法来确定对流扩散方程中的泥沙源函数，其中的临界起动速度利用经典的泥沙起动流速公式前面增加一个局地系数得到，这个系数能反映河床底质结构及固结程度，通过系列数值试验和实测资料的统计分析确定。