Discrete element modeling of the microstructure of fine particle agglomerates in sheared dilute suspension

Manounou, Adolphe Kimbonguila; Rémond, Sébastien

doi:10.1016/j.physa.2014.06.023

Cited by 18 publications

(1 citation statement)

References 51 publications

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“…The flow cessation protocol inducing the sol–gel transition could be addressed qualitatively through the use of the Mason number Mn, 74,75 which is here in the range [3.5 × 10 −4 , 5.2] and agrees rather well with the values in ref. 75 and 76 or the adhesion number Ad, 77–79 which is here in the range [3.6, 5.5 × 10 4 ] weighing the relative importance of adhesion forces compared to shear forces and quantitatively using coagulation–fragmentation equation 80–82 which embraces the competition between different aggregation mechanism and fragmentation through shear or collisions.…”

Section: Discussionmentioning

confidence: 99%

Interpenetration of fractal clusters drives elasticity in colloidal gels formed upon flow cessation

Dagès¹,

Bouthier

Matthews

et al. 2022

Soft Matter

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Section: Discussionmentioning

confidence: 99%

Interpenetration of fractal clusters drives elasticity in colloidal gels formed upon flow cessation

Dagès¹,

Bouthier

Matthews

et al. 2022

Soft Matter

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Numerical modeling of adhesive particle mixing

et al. 2017

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The discrete element method is used to investigate adhesive particle mixing in a system that includes large carrier particles and fine particle agglomerates in a Couette mixer. The simulation starts with 200 carriers and 10 agglomerates with 1000 fine particles each. During mixing, the agglomerates are broken, fractions adhere to the carriers, and there is continuous redistribution of fines between carriers. The focus is to obtain information on the quantity and quality of fine particles adhered to carriers by postprocessing the simulation data. Variation in the structure of agglomerates due to shearing is studied over mixing time. Findings indicate that major fraction of fine particles are dispersed evenly onto the surface of carriers and the rest are in form of free debris. A time‐dependent index is introduced to predict the degree of mixing. Finally, the adhesion force between carriers and coated layers is observed to have a peak at 1 nN. © 2017 American Institute of Chemical Engineers AIChE J, 63: 2599–2609, 2017

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