李克強2006-07-252018-06-282006-07-252018-06-282000http://ntur.lib.ntu.edu.tw//handle/246246/9234The sedimentation behavior of a concentrated suspension of charged spherical particles is investigated theoretically. The sedimentation potential is evaluated taking the effect of double layer polarization into account. A cell model is adopted to describe thepresent multientities system, and a pseudo-spectral numerical scheme is used to solve the governing electrokinetic equations, which comprise a Navior-Stoked equation for flow field and a Poisson equation for electric field. Several interesting phenomena, which are absent if double layer polarization is neglected, are observed. For example, the atio(E*/U*), E* and U* being respectively the scaled sedimentation potential has a minimum if the electrical potential is low, and has a maximum if it is high.本研究為了解帶電密集膠體溶液之沈降理論，在本研究中考慮了電集層橿化效應，使用細胞模式來描述多顆粒子之系統，使用假光譜法來求解主控電動方程式，其中有流場之Navior-Stokes方程式，電場之Poisson方程式，發現了一些有趣的現象，如沈降電位在表面電位小時有最小值，而在表面電位大時有最大值。application/pdf653999 bytesapplication/pdfzh-TW國立臺灣大學化學工程學系暨研究所電泳電位電集層極化懸浮溶液reporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/9234/1/892214E002003.pdf