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本文以动理学理论的 Boltzmann方程为基础 ,考虑明渠湍流床面附近猝发喷射和清扫运动对跃移层内运动颗粒的不同作用 ,分析了明渠中泥沙颗粒浓度垂线分布问题 ,得到了适用于包括跃移层、悬移层在内的统一浓度垂线分布公式。文中着重研究了跃移层内运动颗粒的浓度垂线分布 ,并将本文结果与实测跃移层内浓度垂线分布及实测跃移层顶部浓度进行了对比 ,结果表明理论与实验两者符合较好
In this paper, based on the Boltzmann equation of kinetic theory, taking into account the different effects of sudden jetting and sweeping motion on the moving particles in the transitional layer near the open channel turbulent flow, the vertical distribution of sediment particle concentration in the open channel is analyzed. Including jump layer, hanging layer, including the concentration of uniform concentration distribution formula. In this paper, we mainly study the vertical distribution of the concentration of moving particles in the transitional layer, and compare the results of the paper with the vertical distribution of the concentration in the transitional layer and the measured concentration of the top of the transitional layer. The results show that both the theory and the experiment are in good agreement it is good