絮凝工艺的相关数值计算模拟研究综述  

A Review about the Numerical Simulation of Flocculation Process

作　　者：吴昊雨[1] 

机构地区：[1]安徽工业大学建筑与工程学院,安徽马鞍山243032

出　　处：《广东化工》2013年第5期57-58,42,共3页Guangdong Chemical Industry

摘　　要：文章主要讲述的是目前使用计算流体力学(CFD)方法来模拟水体絮凝相关过程中关于旋流、速度梯度、絮体破坏方面的一些基本论点。不论是在实验室中还是在全尺寸机械混合絮凝池中,内部的流动都是非常复杂的,且对于建模来说都是一个难点。在建模过程中需要考虑如池型、旋流、涡流、速度梯度、絮体破坏、停留时间等许多因素。由于国外对此方面的研究较早,因此文中对旋流、速度梯度、絮体破坏方面在国外的数值模拟重要论断进行整合分析,为研究人员在这些方面进行分析时提供参考。The principal focus of this paper was to present a review of basic points about the rotating flow, velocity gradient, floc breakage involved in the simulation of the flocculation process in water treatment using Computational Fluid Dynamics （CFD）. The internal flow both in the laboratory and the full-scale mechanical mixing flocculation are very complex, and for modeling are a difficulty. There are many elements need to be considered in the modeling process, such as the tank-type, rotating flow, swirling flow, velocity gradient, floc breakage, residence time distribution. Cause abroad research in this field is the earlier than domestic study, this paper gave the important conclusions abroad in the numerical simulation of rotating flow, velocity gradient and floc breakage, and finishing them to provide a reference for researchers in the analysis in these areas.

关 键 词：絮凝 计算流体力学 旋转流动 速度梯度 絮体破坏 

分 类 号：TQ[化学工程]