具有布朗運動的膠體粒子在典型圓球流場中的多層吸附現象與遮蔽效應之探討

• Main Author: 李容馨
• Other Authors: 張有義
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/10865832244815253742

碩士 === 東海大學 === 化學工程學系 === 92 === Abstract By using the Brownian dynamic simulation method and the potential flow field model, the main purpose of the present thesis is to investigate the shadow effect 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. From the simulation results, it is found that both the number and the angle of particle adsorbed increase with the decrease of the control window area, which will cause the shadow effect and the multi-layer deposition behavior of Brownian particles become more pronounced. Under this condition, the amount of Brownian particles deposited is higher than that of non-Brownian particles. The simulation results are also fit well with the available experimental data.