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Measurements Within Cloud Cavitation by Means of X-Ray Attenuation Device

[+] Author Affiliations
Benoit Stutz

Université de Pau, Pau, France

Samuel Legoupil, Romuald Woo

CEA/Saclay, Gif sur Yvette, France

Paper No. FEDSM2002-31002, pp. 343-348; 6 pages
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME


The purpose of this work is to describe the two-phase flow structure of cloud cavitation. The experimental study is performed in a cavitation tunnel equipped with a Venturi-type test section. The flow is investigated by means of a double optical probe and a X-ray attenuation device. 24 collimated detectors enable to measure the instantaneous space fraction of the vapour phase at different locations of the two-phase flow. The technique used to treat the data from the optical probe signal consists in building histograms, and computing statistical values from them. X-ray intensity measurement mode enable fast data acquisitions (1000Hz). The studied geometry is characterized by a convergent angle of 18° and a divergent angle of 8°. It leads to regular large vapour cloud shedding.

Copyright © 2002 by ASME



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