(571c) Polymer-Induced Aggregation of Hematite Under Shear By CFD-DEM Simulations
AIChE Annual Meeting
2024
2024 AIChE Annual Meeting
Particle Technology Forum
Poster Session: Particle Technology Forum
Wednesday, October 30, 2024 - 3:30pm to 5:00pm
Here, coupled Computational Fluid Dynamics – Discrete Element Method (CFD-DEM) is employed to explore the impact of polymer dosage on size and structure of hematite particle under shear, taking into account both particle-particle and particle-fluid interactions. The Yukawa force model [4, 5], is introduced to describe polymer-induced bridging flocculation for strong particle aggregation. The temporal evolution of aggregate size, size distribution, number concentration, and structural characteristics during aggregate growth are quantified shedding light into the detailed mechanism of polymer-induced aggregation.
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