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Title of Journal: Exp Fluids

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Abbravation: Experiments in Fluids

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Springer-Verlag

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10.1007/bf00878729

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1432-1114

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Highspeed roll coating with complex rheology flui

Authors: G Ascanio P J Carreau P A Tanguy
Publish Date: 2005/11/11
Volume: 40, Issue: 1, Pages: 1-14
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Abstract

The flow of high solids content suspensions and coating colors through the deformable gap of counterrotating rolls at high speed was investigated Measurements of nip pressure profiles in a laboratory film coater were conducted and flow visualization experiments downstream the nip were carried out A highspeed video system allowed showing the formation elongation and break up of filaments that yield the misting droplets The role of rheology on misting was also investigated using shear and extensional data Results show that misting mainly generated by film splitting is reduced when the extensional viscosity of the color is larger

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  2. Planar fluorescence for round bubble imaging and its application for the study of an axisymmetric two-phase jet
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