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Etude expé́rimentale du transport hydraulique de grandes particules en conduite horizontale et en forme de S

Communication avec acte
Author
LEMAIRE, Antoine
ccRAVELET, Florent
134975 Laboratoire de Dynamique des Fluides [DynFluid]
ccBAKIR, Farid

URI
http://hdl.handle.net/10985/8582
Date
2011

Abstract

We study the pressure drop and flow regimes for large spheres with respect to the diameter of the pipe (5, 10 and 15%) by differential pressure measurements and visualizations. Two densities are used. The losses are smaller for large grain sizes, and density has a strong effect on the transition point between regimes with a stationary bed flow and dispersed flows. Models based on the Froude number are tested. Finally, we study mixtures of size and / or density. We are also interested in plugging and unplugging transients.

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