CFD simulation of shear-induced aggregation and breakage in turbulent Taylor–Couette flow

An experimental and computational investigation of the effects of local fluid shear rate on the aggregation and breakage of ∼ 10   μm latex spheres suspended in an aqueous solution undergoing turbulent Taylor–Couette flow was carried out. First, computational fluid dynamics (CFD) simulations were pe...

Full description

Saved in:
Bibliographic Details
Published in:Journal of colloid and interface science 2005-05, Vol.285 (1), p.167-178
Main Authors: Wang, Liguang, Vigil, R. Dennis, Fox, Rodney O.
Format: Article
Language:English
Subjects:
Aggregation
Breakage
Chemistry
Computational fluid dynamics
Exact sciences and technology
General and physical chemistry
QMOM
Taylor–Couette flow
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An experimental and computational investigation of the effects of local fluid shear rate on the aggregation and breakage of ∼ 10   μm latex spheres suspended in an aqueous solution undergoing turbulent Taylor–Couette flow was carried out. First, computational fluid dynamics (CFD) simulations were performed and the flow field predictions were validated with data from particle image velocimetry experiments. Subsequently, the quadrature method of moments (QMOM) was implemented into the CFD code to obtain predictions for mean particle size that account for the effects of local shear rate on the aggregation and breakage. These predictions were then compared with experimental data for latex sphere aggregates (using an in situ optical imaging method). Excellent agreement between the CFD-QMOM and experimental results was observed for two Reynolds numbers in the turbulent-flow regime.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2004.10.075