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Transient deagglomeration of solid aggregates in sheared viscous liquids
Author(s) -
Kamal Musa R.,
Patterson I.
Publication year - 1974
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450520603
Subject(s) - agglomerate , materials science , mechanics , transient (computer programming) , work (physics) , particle size distribution , particle (ecology) , shear stress , stress (linguistics) , shear (geology) , particle size , thermodynamics , composite material , physics , chemistry , geology , computer science , linguistics , philosophy , operating system , oceanography
The model originally proposed to determine the equilibrium particle size distribution in the deagglomeration of solid aggregates in sheared viscous fluids is extended to determine the transient particle size distribution prior to equilibrium. The model requires as input data the initial size distribution of the agglomerates as well as the agglomerate strength distribution and the change in shear stress level. In this paper, a step change in stress is considered. Experiments have been performed to verify the model. The shear stress field was provided by a concentric cylinder apparatus and the analysis technique was similar to that employed in earlier work. Calculated and experimental results agree within the accuracy limits imposed by experimental and sampling errors. The results also agree with other predictions relating to the behavior of particle suspensions in liquids.