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Exploration acoustique d'une suspension non-colloïdale perturbée. Mesure des grandeurs caractéristiques du système.

Abstract : The prediction of the stability of fluidized beds (Batchelor, 1988) has required the use of new physical characteristics, such as the hydrodynamic dispersion coefficient and the elasticity of the suspension. In this thesis, those characteristics have been measured on model solid-liquid suspensions (quasi-monodisperse glass beads in "water-like" liquids), in simplified experimental conditions. The experiments have been performed in a fluidized bed (a suspension stabilized by a counterflow), allowing the control of the concentration by the flow-rate of the injected fluid. The concentration has been determined by an acoustic technique (based on the measurement of the sound velocity), with an accuracy of about 0.1% on the whole range (0
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https://tel.archives-ouvertes.fr/tel-00865785
Contributor : Jérôme Martin <>
Submitted on : Wednesday, September 25, 2013 - 10:14:10 AM
Last modification on : Wednesday, September 16, 2020 - 4:32:35 PM
Long-term archiving on: : Thursday, December 26, 2013 - 4:17:43 AM

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  • HAL Id : tel-00865785, version 1

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Jérôme Martin. Exploration acoustique d'une suspension non-colloïdale perturbée. Mesure des grandeurs caractéristiques du système.. Mécanique des fluides [physics.class-ph]. Université Pierre et Marie Curie - Paris VI, 1995. Français. ⟨tel-00865785⟩

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