...自身性质和流体特征 量之间的关系；宏观物理问题则侧重于使用数学模型求解颗粒群的通用动力学方程 （General Dynamic Equation）以观察颗粒群的粒径分布和颗粒长大的情况。
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Particle general dynamic equation 颗粒一般动力学方程
To study the change of particle size distribution, a general dynamic equation is established based on the moment method and the assumption of a reasonable log-normal size distribution.
通过对颗粒的分布作出一个合理的对数正态分布假设，运用矩方法求解颗粒的通用动力学方程，来研究颗粒的尺寸分布情况。
Based on the particles aggregation coefficient calculated by the binary collision-aggregation model, the total particle removal rate was simulated by solving the particle General Dynamic Equation.
采用二元碰撞聚并模型计算了粒子在均匀磁场中的聚并系数，在此基础上求解了粒子聚并动力学方程，预测了粒子的聚并脱除效率。
Hereafter, the general rate is determined by the diffusing rate in the exterior surface layer of the particle, which accord with lst-grade dynamic differential equation.
此后，总速率由颗粒外表层内的扩散速率决定，符合一级动力学微分方程。
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