Computer Simulation of Coagulation

by Iraklis A. Valioulis, Flow Science Inc, Ventura, CA, USA,

Abstract: Coagulation, the process of collision and coalescence of particles, modifies the size distribution of the suspended mass, continuously creating larger particles which may settle out of the suspension. Prediction of the evolution of the size distribution in a flow loaded with coagulating particles can be accomplished in several ways, all requiring substantial computing power. This paper provides an outline of the state of the art of coagulation modeling, focusing on the flocculent suspensions found in waters and wastewaters. Techniques discussed are direct simulation of particle collisions, numerical solutions of the kinetic coagulation equation, and stochastic exact simulation of the collision process.

Subject Headings: Coagulation | Particle size distribution | Flow distribution | Numerical models | Flow simulation | Stochastic processes | Computer models | Water flow

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