Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: Keynote - Local Stokes number for particles in turbulent flows
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 Material Information
Title: Keynote - Local Stokes number for particles in turbulent flows
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Hagiwara, Y.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
Abstract: Governing factors for turbulence modification in turbulent particulate flow have been focused on for decades. Recently, the modification of some turbulence statistics due to fine particles has been discussed by using the Stokes number, which is the ratio of the particle time scale to the time scale of turbulence. However, the motion of particles has not yet been discussed with the Stokes number, especially in the case of particles with finite size. Thus, it is not well understood to what extent the Stokes number is promising as the governing factor. In the present keynote lecture, we explore discussion of the time scales and the Stokes number in some previous studies. Also, we show our new evaluation of local Stokes number by using our DNS results for downward flow with a high-density particle in a vertical duct. We discuss the effectiveness of the new Stokes number briefly.
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
General Note: Dr. Yoshimichi Hagiwara is a professor of Department of Mechanical and System Engineering at Kyoto Institute of Technology, Japan. He is a fellow of the Japanese Society for Fluid Dynamics. He served as a member of scientific committees of ICMF'01, ICMF'04 and ICMF'07 and many other international conferences. He has also served as a member of Governing Board of ICMF since 2007. He is currently one of the chair organizers of 12th Int. Symposium on Liquid-solid Flows. His areas of expertise include measurements and numerical simulations on dispersed two-phase (gas-liquid, gas-solid, liquid-liquid and liquid-solid) flows, turbulent drag reduction and bio-mimetic control of heat transfer. He has published 60 articles in refereed journals and 100 articles in international conferences.
 Record Information
Bibliographic ID: UF00102023
Volume ID: VID00007
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 0-Keynote-Hagiwara-ICMF2010.pdf

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