PARTICLE DEPOSITION ON IDEAL COLLECTORS FROM DILUTE FLOWING SUSPENSIONS - MATHEMATICAL FORMULATION, NUMERICAL-SOLUTION, AND SIMULATIONS
PARTICLE DEPOSITION ON IDEAL COLLECTORS FROM DILUTE FLOWING SUSPENSIONS - MATHEMATICAL FORMULATION, NUMERICAL-SOLUTION, AND SIMULATIONS
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DOI：
10.1016/0956-9618(94)80024-3
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发表时间：
1994-10-01
期刊：
影响因子：
--
通讯作者：
ELIMELECH, M
中科院分区：
文献类型：
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作者：
ELIMELECH, M
本文给出了理想沉积系统中粒子沉积的对流扩散方程的定量公式。所考虑的收集器包括旋转盘、驻点流、平行板通道、孤立球和由均匀球组成的多孔介质。对于每个收集器，建立了完整的粒子输运方程、适当的边界条件和粒子沉积速率的表达式。文中还给出了求解对流扩散方程的数值方法。对各种物理和化学胶体变量对颗粒沉积速率的影响进行了模拟并进行了讨论。所提出的理论适用于颗粒间相互作用可以忽略的稀悬浮液中的颗粒沉积。
This paper presents the quantitative formulation of the convective diffusion equation for particle deposition in ideal deposition systems. Collectors considered include the rotating disk, stagnation-point flow, parallel-plate channel, isolated sphere, and a porous medium composed of uniform spheres. For each collector the complete particle transport equation, proper boundary conditions, and expressions for the particle deposition rate are formulated. Also presented are numerical procedures for solving the convective diffusion equation. Simulations for the effect of various physical and chemical-colloidal variables on the rate of particle deposition are presented and discussed. The theories presented apply to particle deposition from dilute suspensions in which interparticle interactions are negligible.