A novel three‐dimensional CFD model has been developed on the basis of fluid flow in the shell and lumen sides, and permeation and fouling behavior in the porous membrane zone. The simulated 25‐min dead‐end outside‐in filtration process showed that the energy consumed by the inlet manifold decreases during the constant pressure filtration. The velocity and pressure distributions in the module change with time. Flux distribution both in the axial and radial directions becomes increasingly more uniform, so does the cake distribution. Flux distribution and cake distribution inter‐adjust each other in different modes. A correlation equation has been developed to describe the relationship between the volumetric flow rate and accumulated water production. The correlation equation with simple experiment enables the dynamic evolution of energy consumed by shell inlet manifold to be presented, which can be the criterion of how well the shell inlet manifold or module has been designed. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2655–2669, 2018

中文翻译：

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工业中空纤维膜组件中随时间变化的流体流动和结垢行为的三维模拟

基于壳和管腔侧的流体流动以及多孔膜区域的渗透和结垢行为，开发了一种新颖的三维CFD模型。模拟的25分钟无死角外向内过滤过程表明，在恒压过滤过程中，进气歧管消耗的能量减少了。模块中的速度和压力分布会随时间变化。轴向和径向上的焊剂分布变得越来越均匀，饼的分布也越来越均匀。助焊剂分配和滤饼分配以不同的方式相互调整。已经建立了相关方程来描述体积流量和累积水产量之间的关系。通过简单的实验相关方程，可以显示出壳体进气歧管消耗的能量的动态演变，这可以作为壳体进气歧管或模块设计得如何好坏的标准。©2018美国化学工程师学会AIChE J，64：2655–2669，2018年