有粒徑分佈之布朗運動膠體粒子在Kuwabara流場中吸附行為的探討

• Main Author: 廖耿毅
• Other Authors: 張有義
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/32093550672393121196

碩士 === 東海大學 === 化學工程學系 === 92 === By using the Brownian dynamic simulation method and the Kuwabara flow field model, the main purpose of the present thesis is to investigate the effect of the size distribution on the multi-layer deposition morphology of Brownian particles onto a spherical collector, at which the effect of the interaction forces of DLVO theory is also considered. In the present thesis, the type of normal Gaussian size distribution is adopted. From the simulation results, it is found that the collection efficiencies of Brownian particles with large size distribution are higher than those of particles with narrow size distribution. It is also found that the interaction energy curves of DLVO theory and the fluid velocity play an important role in determining the collection efficiency of Brownian particles. The collection efficiency for the case of considering shadow effect is higher than that of the case without considering shadow effect. Applying with the available data of parameters, the present model is also compared with the available experimental results.