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Aggregation in colloidal suspensions: Effect of colloidal forces and hydrodynamic interactions

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journal contribution
posted on 18.07.2017 by Nina Kovalchuk, Victor Starov
The forces acting in colloidal suspensions and affecting their stability and aggregation kinetics are considered. The approximations used for these forces in numerical simulations and the importance of the balanced account for both colloidal forces and hydrodynamic interactions are discussed. As an example the results of direct numerical simulations of kinetics of aggregation either with account for hydrodynamic interaction between particles or without it are compared by varying the parameters of the interaction potential between particles and fraction of solid. Simulations are based on the Langevin equations with pairwise interaction between particles and take into account Brownian, hydrodynamic and colloidal forces. It is confirmed that the neglecting of hydrodynamic interaction results in an accelerated growth of aggregates. The results of numerical simulations of aggregation kinetics are compared with well known analytical solutions.

Funding

This research was supported by the Engineering and Physical Sciences Research Council, UK,MULTYFLOW, EU and DFG project SPP 1506 (Mi418/18-1).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Advances in Colloid and Interface Science

Volume

179-182

Pages

99 - 106

Citation

KOVALCHUK, N. and STAROV, N., 2012. Aggregation in colloidal suspensions: Effect of colloidal forces and hydrodynamic interactions. Advances in Colloid and Interface Science, 179-182, pp. 99-106.

Publisher

© The Authors. Published by Elsevier

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Publication date

2012

Notes

This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

ISSN

0001-8686

Language

en

Licence

Exports