Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: 1.5.4 - Experimental investigation of particle-laden turbulent channel flow: time-resolved observations
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 Material Information
Title: 1.5.4 - Experimental investigation of particle-laden turbulent channel flow: time-resolved observations Particle-Laden Flows
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Zarruk, G.A.
Skjæraasen, O.
Skartlien, R.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
Subject: particle-laden flow
suspension flow
channel flow
dilute suspension
Abstract: Experimental analysis of dilute suspension flow in a turbulent channel was performed using time-resolved particle image velocimetry and particle tracking velocimetry. The active particles had a mean diameter of 230 m and a relative density of 1.15. The mean particle volume fraction varied between 1:3 10􀀀4 and 1:8 10􀀀4. The particle properties and concentration were chosen to simulate the properties of light sand suspensions in oil pipelines, while ignoring particle wetting effects. Three experiments with Reynolds numbers 10,000, 20,000, and 30,000 are presented. The mean velocity profiles of the carrier fluid (water) was not significantly modified by the presence of particles except at Reynolds number 30,000 where the mean fluid velocity was enhanced along the top half of the channel. This is attributed to the low particle concentration of particles in this region. Particle settling is observed in the two lower Reynolds numbers tested. Results indicate a strong influence of the motion of settling particles on the carrier fluid turbulence. Turbulence is suppressed over the bulk of the flow but there is a strong enhancement of the wall-normal turbulence in the Reynolds number 20,000 case, compared to the other two cases. This behavior is attributed to the flow being in transition from a settling suspension to fully suspended flow conditions.
General Note: The International Conference on Multiphase Flow (ICMF) first was held in Tsukuba, Japan in 1991 and the second ICMF took place in Kyoto, Japan in 1995. During this conference, it was decided to establish an International Governing Board which oversees the major aspects of the conference and makes decisions about future conference locations. Due to the great importance of the field, it was furthermore decided to hold the conference every three years successively in Asia including Australia, Europe including Africa, Russia and the Near East and America. Hence, ICMF 1998 was held in Lyon, France, ICMF 2001 in New Orleans, USA, ICMF 2004 in Yokohama, Japan, and ICMF 2007 in Leipzig, Germany. ICMF-2010 is devoted to all aspects of Multiphase Flow. Researchers from all over the world gathered in order to introduce their recent advances in the field and thereby promote the exchange of new ideas, results and techniques. The conference is a key event in Multiphase Flow and supports the advancement of science in this very important field. The major research topics relevant for the conference are as follows: Bio-Fluid Dynamics; Boiling; Bubbly Flows; Cavitation; Colloidal and Suspension Dynamics; Collision, Agglomeration and Breakup; Computational Techniques for Multiphase Flows; Droplet Flows; Environmental and Geophysical Flows; Experimental Methods for Multiphase Flows; Fluidized and Circulating Fluidized Beds; Fluid Structure Interactions; Granular Media; Industrial Applications; Instabilities; Interfacial Flows; Micro and Nano-Scale Multiphase Flows; Microgravity in Two-Phase Flow; Multiphase Flows with Heat and Mass Transfer; Non-Newtonian Multiphase Flows; Particle-Laden Flows; Particle, Bubble and Drop Dynamics; Reactive Multiphase Flows
 Record Information
Bibliographic ID: UF00102023
Volume ID: VID00031
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 154-Zarruk-ICMF2010.pdf

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