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Two Colliding Grinding Beads: Experimental Flow Fields and Particle Capture Efficiency

Gers, Romain and Anne-Archard, Dominique and Climent, Éric and Legendre, Dominique and Frances, Christine Two Colliding Grinding Beads: Experimental Flow Fields and Particle Capture Efficiency. (2010) Chemical Engineering and Technology, 33 (9). 1438-1446. ISSN 0930-7516

(Document in English)

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Official URL: http://dx.doi.org/10.1002/CEAT.201000156


Hydrodynamics plays a major role in wet grinding processes used to produce nanoparticles, but its influence on the mechanisms of fragmentation is not fully understood. The focus is on hydrodynamics in the gap between two grinding beads. Using particle image velocimetry in a large-scale experiment, the velocity field between the beads has been investigated when the beads get closer (down to one-tenth of their radius). Different configurations have been studied, varying from frontal approach to tangential collision. Finally, a capture probability of suspended particles has been estimated.

Item Type:Article
HAL Id:hal-03474382
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:01 Jun 2012 15:38

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