https://scholars.lib.ntu.edu.tw/handle/123456789/410525
標題: | Effect of pore morphology on fluid flow and particle deposition on a track-etched polycarbonate membrane | 作者: | Tung K.-L. Chuang C.-J. |
關鍵字: | Computer simulation;Membrane fouling;Microfiltration;Particle deposition;Pore morphology;Track-etched polycarbonate membrane | 公開日期: | 2002 | 卷: | 146 | 期: | 1-3 | 起(迄)頁: | 129-134 | 來源出版物: | Desalination | 摘要: | Three-dimensional particles deposition on a filter pore of a track-etched polycarbonate membrane was studied numerically by analyzing forces acting on the depositing particles. The simulation was applied to examine how the morphology of the filter pore affects the deposition of particles on a membrane pore at the initial stage of filtration. The model of membrane structure is a 3D porous surface with circular holes of finite thickness. Both of the effects of constriction and expansion of inner pore geometries on fluid flow and particle deposition are taken into consideration in numerical calculation, and are compared with that of capillary pore. The disturbance of flow field and particle trajectory due to the presence of particles was taken into consideration during each simulation. Simulated results show that the effect of filtration rate, i.e., operating pressure, has a significant influence on the packing morphology of particles on a filter pore. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/410525 | ISSN: | 00119164 | DOI: | 10.1016/S0011-9164(02)00504-0 |
顯示於: | 化學工程學系 |
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