Group Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Title: 1.1.2 - 3D X-ray CT Imaging of Cavitation from a Butterfly Valve
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Permanent Link: http://ufdc.ufl.edu/UF00102023/00016
 Material Information
Title: 1.1.2 - 3D X-ray CT Imaging of Cavitation from a Butterfly Valve Cavitation
Series Title: 7th International Conference on Multiphase Flow - ICMF 2010 Proceedings
Physical Description: Conference Papers
Creator: Heindel, T.J.
Jensen, T.C.
Drake, J.B.
McCormick, N.
Rivel, M.L.
Publisher: International Conference on Multiphase Flow (ICMF)
Publication Date: June 4, 2010
 Subjects
Subject: butterfly valve
cavitation
imaging
X-ray computed tomography
 Notes
Abstract: This study applies X-ray imaging technology to visualize cavitation from a butterfly valve, with the goal of developing measurement techniques to improve our understanding of valve cavitation. Three-dimensional X-ray computed tomography (CT) imaging is completed for a 5.1 cm diameter butterfly valve operating over a range of conditions that promote cavitation. The 3D CT images reveal time-average density variations downstream of the valve; these density variations correspond to regions of liquid vapor that are generated during cavitation. It is observed that cavitation occurs from the downstream edges of the butterfly valve as well as from the downstream flow passage edges. The cavitation region expands as the pressure drop increases. The CT images of the cavitation flow field are used to estimate the time-averaged local void fraction in the cavitation region.
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: VID00016
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 112-Heindel-ICMF2010.pdf

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