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Title: PIV Analysis of Cavitation Flow Characteristics of He II

Abstract

In the present experimental study cavitation phenomena in both He I and He II flows were investigated through the application of the PIV technique and visual observation under the saturated vapor pressure condition. The cavitation flow was generated in the downstream regions of a Venturi channel and a converging jet nozzle driven by a contracting metal bellows. It is seen that cavitation inception is a kind of stochastic process and has definite temperature dependence. The spatial distribution of the cavitation bubble velocity is measured by using the PIV technique. Some differences in the cavitating flow pattern and the void fraction are found between He II and He I cavitating flows. The PIV result indicates that the void fraction for He II flow is larger than that for He I flow.

Authors:
;  [1]
  1. Graduate School of Systems and Information Engineering, University of Tsukuba, Tsukuba, 305-8573 (Japan)
Publication Date:
OSTI Identifier:
20800209
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 823; Journal Issue: 1; Conference: Cryogenic engineering conference, Keystone, CO (United States), 29 Aug - 2 Sep 2005; Other Information: DOI: 10.1063/1.2202594; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BELLOWS; BUBBLES; CAVITATION; HELIUM I; HELIUM II; LIQUIDS; METALS; SPATIAL DISTRIBUTION; STOCHASTIC PROCESSES; SUPERFLUIDITY; TEMPERATURE DEPENDENCE; VAPOR PRESSURE; VELOCITY; VOID FRACTION

Citation Formats

Harada, K., and Murakami, M. PIV Analysis of Cavitation Flow Characteristics of He II. United States: N. p., 2006. Web. doi:10.1063/1.2202594.
Harada, K., & Murakami, M. PIV Analysis of Cavitation Flow Characteristics of He II. United States. doi:10.1063/1.2202594.
Harada, K., and Murakami, M. Thu . "PIV Analysis of Cavitation Flow Characteristics of He II". United States. doi:10.1063/1.2202594.
@article{osti_20800209,
title = {PIV Analysis of Cavitation Flow Characteristics of He II},
author = {Harada, K. and Murakami, M.},
abstractNote = {In the present experimental study cavitation phenomena in both He I and He II flows were investigated through the application of the PIV technique and visual observation under the saturated vapor pressure condition. The cavitation flow was generated in the downstream regions of a Venturi channel and a converging jet nozzle driven by a contracting metal bellows. It is seen that cavitation inception is a kind of stochastic process and has definite temperature dependence. The spatial distribution of the cavitation bubble velocity is measured by using the PIV technique. Some differences in the cavitating flow pattern and the void fraction are found between He II and He I cavitating flows. The PIV result indicates that the void fraction for He II flow is larger than that for He I flow.},
doi = {10.1063/1.2202594},
journal = {AIP Conference Proceedings},
number = 1,
volume = 823,
place = {United States},
year = {Thu Apr 27 00:00:00 EDT 2006},
month = {Thu Apr 27 00:00:00 EDT 2006}
}