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

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

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

Résumé

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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Dynfluid-CFM-Ravelet-2011.pdf
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Cette publication figure dans le(s) laboratoire(s) suivant(s)

  • Dynamique des Fluides (DynFluid)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Experimental study of hydraulic transport of large particles in horizontal pipes 
    Article dans une revue avec comité de lecture
    REY, Robert; ccRAVELET, Florent; ccBAKIR, Farid; ccKHELLADI, Sofiane (Elsevier, 2013)
    This article presents an experimental study of the hydraulic transport of very large solid particles (above 5 mm) in an horizontal pipe. Two specific masses are used for the solids. The solids are spheres that are large ...
  • Experimental study of the instationary flow between two ducted Counter-rotating rotors 
    Article dans une revue avec comité de lecture
    NOURI, Hussain; DANLOS, Amélie; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (American Society of Mechanical Engineers, 2013)
    The purpose of this work is to study experimentally the aerodynamic characteristics of a subsonic counter-rotating axial-flow fans system operating in a ducted configuration. The fans of diameter D = 375 mm were designed ...
  • Cavitation regime detection through Proper Orthogonal Decomposition: dynamics analysis of the sheet cavity on a grooved convergent-divergent nozzle 
    Article dans une revue avec comité de lecture
    DANLOS, Amélie; ccRAVELET, Florent; ccCOUTIER-DELGOSHA, Olivier; ccBAKIR, Farid (Elsevier, 2014)
    The unsteady character of the sheet cavity dynamics on the suction side of hydrofoils, on convergent–divergent nozzles or on blades in turbines and propellers is responsible for many issues like erosion, noise and vibrations. ...
  • Study of the cavitating instability on a grooved Venturi profile 
    Article dans une revue avec comité de lecture
    DANLOS, Amélie; MÉHAL, Jean-Elie; ccRAVELET, Florent; ccCOUTIER-DELGOSHA, Olivier; ccBAKIR, Farid (American Society of Mechanical Engineers, 2014)
    Instabilities of a partial cavity developed on a hydrofoil, a converging-diverging step, or in an interblade channel have already been investigated in many previous works. The aim of this study is to evaluate a passive ...
  • Experimental study of aerated cavitation in a horizontal venturi nozzle 
    Article dans une revue avec comité de lecture
    TOMOV, Petar; KHELLADI, Sofiane; RAVELET, Florent; SARRAF, Christophe; BAKIR, Farid; VERTENOEUIL, P. (Elsevier, 2015)
    The injection of bubbles into an already cavitating flow is a way of influencing the typical cavitating behavior. The present article deals with experiments on aerated and non-aerated cavitation in a transparent horizontal ...

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