2013
DOI: 10.1016/j.memsci.2013.04.031
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DEM simulations of initial deposition of colloidal particles around non-woven membrane spacers

Abstract: The modelling of the initial deposition on membrane spacers of colloidal size particles immersed in a liquid is investigated using the Discrete Element Method (DEM). The ability of this method to model surface interactions allows the modelling of particle agglomeration and deposition at the particle scale. The numerical model adopts a mechanistic approach to represent the forces involved in colloidal suspension by including near wall drag retardation, surface interaction and Brownian forces. The model is imple… Show more

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Cited by 10 publications
(9 citation statements)
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“…In this way, the particle transport in the bulk fluid presented in this study could be combined with DEM simulations including various forces (e.g., drag, shear-induced lift, etc.) acting on a particle in the vicinity of a wall (Chaumeil and Crapper (2013)). …”
Section: Further Studiesmentioning
confidence: 99%
“…In this way, the particle transport in the bulk fluid presented in this study could be combined with DEM simulations including various forces (e.g., drag, shear-induced lift, etc.) acting on a particle in the vicinity of a wall (Chaumeil and Crapper (2013)). …”
Section: Further Studiesmentioning
confidence: 99%
“…The bacterial adhesive kinetics, including bacterial motions and collisions, were simulated by coupling the Discrete Element Method (DEM) and Computational Fluid Dynamics (CFD) methods for the rst time. 15,19 The simulations of particulates as described in this work can predict initial deposition patterns of both elastic membrane and rigid membrane. It evaluates the role of elastic deformation, which could inuence the bacteria adhesion.…”
Section: Introductionmentioning
confidence: 99%
“…Biofouling occurs via the formation of biofilm, which triggered by the adhesion of primary colonizing bacteria. 15 In the early stages of biofilm formation, physical interactions are the first forces for bacteria adhesion, which frequently influenced by the physical properties of interaction surface. 16 As previous reports, the micron-scale deformations are presented on elastic surface, and it is benefit to antifouling.…”
Section: Introductionmentioning
confidence: 99%
“…This leads to a frequency dependent decrease in recirculation zone downstream of the spacer filament and therefore a decrease in d ab . Chaumeil and Crapper [7] stated that areas with low wall shear stress are more likely to be affected by colloidal fouling. In the example of the zig-zag configuration that would be downstream of a spacer filament.…”
Section: Wall Shear Stress In Empty and Spacer-filled Channelsmentioning
confidence: 99%
“…Chaumeil and Crapper [7] studied the initial deposition of colloidal particles around non-woven membrane spacers. They used the discrete element method in combination with CFD to study colloidal particles in a fluid.…”
Section: Introductionmentioning
confidence: 99%