具有布朗運動的膠體粒子在壓縮管中之吸附軌跡模擬探討

• Main Author: 杜瓊玲
• Other Authors: 張有義
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/76513457612350426846

碩士 === 東海大學 === 化學工程學系 === 91 === The main purpose of this research is to simulate the adhesion behavior of particles with Brownian motion in the PCT constricted tube. With the flow field of the constricted tube, we use the stochastic method to describe the Brownian motion effect. The interaction forces of electric double layer repulsion and van der Waals attraction are considered in the present model. From the simulation results, it is formed that the collection efficiency of particles without Brownian motion is higher than that of particles with Brownian motion. The higher the Reynolds number of particles, the higher the collection efficiency of particles. And the height of primacy maximum and the depth of secondary minimum is the interaction energy profile of DLVO theory play an important role is determining the collection efficiency of particles. The simulation results obtained by the present model are also compared with the available experimental data.