Simulation of aggregate deformation and breakup in simple shear flows using a combined continuum and discrete model

Michael Zeidan, Bao H. Xu, Xiaodong Jia, Richard A Williams

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The evolution of aggregates suspended in liquid and subjected to simple (elongational) shear flows is reported under different shear rates and for varying strengths of interparticle interactions. This is carried out using simulations via the combined continuum and discrete model, offering a combined approach of distinct element method and computational fluid dynamics. In such a model, the motion of individual particles is obtained by solving Newton's second law of motion and flow of continuum fluid by the locally-averaged Navier–Stokes equations. The results demonstrate the dependence of both the dominating aggregate breakup mechanism and final aggregate morphology on shear rates and strength of interparticle interactions.
Original languageEnglish
Pages (from-to)1645-1654
Number of pages10
JournalChemical Engineering Research and Design
Volume85
Issue number12
DOIs
Publication statusPublished - 2007

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