caa a22 4500 475763602 CHVBK 20180406123558.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1007/s003960050552 doi (NATIONALLICENCE)springer-10.1007/s003960050552 Diffusiophoresis in a concentrated suspension of colloidal spheres in nonelectrolyte gradients [Elektronische Daten] [H. J. Keh, Y. K. Wei] The diffusiophoretic motion of a homogeneous suspension of identical spherical particles is considered under conditions of small Reynolds and Peclet numbers. The effects of interaction of the individual particles are taken into explicit account by employing a unit cell model which is known to provide good predictions for the sedimentation of monodisperse suspensions of spherical particles. The appropriate equations of conservation of mass and momentum are solved for each cell, in which a spherical particle is envisaged to be surrounded by a concentric shell of suspending fluid, and the diffusiophoretic velocity of the particle is calculated for various cases. Analytical expressions of this mean particle velocity are obtained in closed form as functions of the volume fraction of the particles. Comparisons between the ensemble-averaged diffusiophoretic velocity of a test particle in a dilute suspension and our cell-model results are made. Springer-Verlag Berlin Heidelberg, 2000 Key words Diffusiophoresis in nonelectrolyte gradients nationallicence Concentrated suspension of spheres nationallicence Effects of particle volume fraction nationallicence Unit cell model nationallicence Keh H. J. Department of Chemical Engineering National Taiwan University Taipei 106-17, Taiwan e-mail: huan@ccms.ntu.edu.tw Fax: +886-2-23623040, TW aut Wei Y. K. Department of Chemical Engineering National Taiwan University Taipei 106-17, Taiwan e-mail: huan@ccms.ntu.edu.tw Fax: +886-2-23623040, TW aut https://doi.org/10.1007/s003960050552 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960050552 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Keh H. J. Department of Chemical Engineering National Taiwan University Taipei 106-17, Taiwan e-mail: huan@ccms.ntu.edu.tw Fax: +886-2-23623040, TW aut NATIONALLICENCE 700 1- Wei Y. K. Department of Chemical Engineering National Taiwan University Taipei 106-17, Taiwan e-mail: huan@ccms.ntu.edu.tw Fax: +886-2-23623040, TW aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer