Colloid-colloid and colloid-wall interactions in driven suspensions
| Type of Publication: | Journal article |
| Publication status: | Published |
| URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1juoi4p6gcyo53 |
| Author: | Krüger, Matthias; Rauscher, Markus |
| Year of publication: | 2007 |
| Published in: | The Journal of Chemical Physics ; 127 (2007), 3. - 034905. - American Institute of Physics (AIP). - ISSN 0021-9606. - eISSN 1089-7690 |
| ArXiv-ID: | arXiv:0706.0793 |
| DOI (citable link): | https://dx.doi.org/10.1063/1.2753481 |
| Summary: |
We investigate the non-equilibrium fluid structure mediated forces between two colloids driven through a suspension of mutually non-interacting Brownian particles as well as between a colloid and a wall in stationary situations. We solve the Smoluchowski equation in bispherical coordinates as well as with a method of reflections, both in linear approximation for small velocities and numerically for intermediate velocities, and we compare the results to a superposition approximation considered previously. In particular we find an enhancement of the friction (compared to the friction on an isolated particle) for two colloids driven side by side as well as for a colloid traveling along a wall. The friction on tailgating colloids is reduced. Colloids traveling side by side experience a solute induced repulsion while tailgating colloids are attracted to each other.
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| Subject (DDC): | 530 Physics |
| Link to License: | In Copyright |
| Refereed: | Yes |
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KRÜGER, Matthias, Markus RAUSCHER, 2007. Colloid-colloid and colloid-wall interactions in driven suspensions. In: The Journal of Chemical Physics. American Institute of Physics (AIP). 127(3), 034905. ISSN 0021-9606. eISSN 1089-7690. Available under: doi: 10.1063/1.2753481
@article{Kruger2007Collo-59927, title={Colloid-colloid and colloid-wall interactions in driven suspensions}, year={2007}, doi={10.1063/1.2753481}, number={3}, volume={127}, issn={0021-9606}, journal={The Journal of Chemical Physics}, author={Krüger, Matthias and Rauscher, Markus}, note={Article Number: 034905} }
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