基于CFD流体仿真模拟的絮凝池流态分析及方案设计

采用计算流体动力学仿真分析（COMSOL-CFD），解决Z市给水厂中1个供水系列出水效果不好的问题.通过对絮凝池进行模型构建和分析，指出现运行的絮凝池结构和尺寸设计不合理，导致絮凝池絮凝效果不好，沉淀池末端才见絮体的问题.本文提出了3种改造方案，并进行构筑物建模、流态分析和计算优化，为实际改造工程提供依据，探讨了COMSOL-CFD模型在给水处理方案设计和改造中的应用及效果.

Analysis and Design of Flocculation Tank of Water Supply Plant Based on CFD Simulation of Flow Simulation

The Computational Fluid Dynamics (CFD) module in COMSOL Multiphasic software is used to construct the models comparing simulation schemes and the analysis results of a series of flocculation tanks in Z City's water plant. It is found that the structure and size of existing flocculation tank are unreasonable in design, which has a bad effect on flocculation, and leads to flocs being observed at the end of the sedimentation tank. Based on the calculation results, three transformation schemes are designed and proposed, which are supplemented by structure modeling, flow analysis and calculation optimization, and the advantages and disadvantages of each transformation scheme are listed, thus providing the basis for the actual reconstruction project. Finally, the application and effect of COMSOL-CFD technology in the schemes design and modification of water treatment are discussed, with practical conclusions of COMSOL-CFD in water treatment engineering obtained.