根据颗粒过滤器的理想毛细管模型中层流的几何特性，评估了正动絮凝的机理。推导了絮凝参数的数学表达式，并进行了扩展，给出了与实验结果有关的瞬时值和平均值的表达式。在不同的操作条件下，比较了正动絮凝的各个参数与过滤器的去除效率。研究发现，控制絮体大小的速度梯度对过滤器去除效率有显著影响。包括16个参考文献、表格和图表。

The mechanism of orthokinetic flocculation is assessed in relation to the geometric properties of laminar flow in an idealized capillary model of a granular filter. Mathematical expressions are derived for the parameters of flocculation and expanded to give expressions covering instantaneous and average values relating to experimental results. Each parameter of orthokinetic flocculation is compared with the removal efficiency of the filter under different operating conditions. Velocity gradient, which controls floc size, is found to have a significant effect on filter removal efficiency. Includes 16 references, tables, figures.