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Microsystem Technologies
Erschienen in: Microsystem Technologies 2/2011

01.02.2011 | Technical Paper

A non-local extension of the Phillips model for shear induced particle migration

verfasst von: D. Kauzlarić, A. Greiner, J. G. Korvink

Erschienen in: Microsystem Technologies | Ausgabe 2/2011

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Abstract

We present a simple and natural extension of Phillips’ model (Phillips in Phys Fluids A 4(1):30–40, 1992) for shear induced particle migration in concentrated suspensions. It is based on considering an effective deformation rate as it is experienced by a solid particle of finite size. In this way the solid fraction does not converge anymore to the maximum packing in the centre of Poiseuille-like flows where the deformation rate vanishes, and the steady state concentration profile becomes dependent on the particle diameter a. In addition, the migration rate in the extended model scales with a n , where 2 < n < 3 in contrast to the strict a 2-scaling of the original Phillips-model.
Vorheriger Artikel Powder injection moulding of metallic and ceramic micro parts
Nächster Artikel Influence of surface condition on wear behavior of μPIM mould inserts made of tool steel and cemented carbide

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Literatur
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Metadaten
Titel
A non-local extension of the Phillips model for shear induced particle migration
verfasst von
D. Kauzlarić
A. Greiner
J. G. Korvink
Publikationsdatum
01.02.2011
Verlag
Springer-Verlag
Erschienen in
Microsystem Technologies / Ausgabe 2/2011
Print ISSN: 0946-7076
Elektronische ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-011-1280-4

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