Turbomachinery
Online ISSN : 1880-2338
Print ISSN : 0385-8839
ISSN-L : 0385-8839
Technical papers
Phase Resonance in Centrifugal Fan
Yumeto NISHIYAMA, Takayuki SUZUKI, Koichi YONEZAWA, Hiroshi TANAKA, Peter Doerfler, Yoshinobu TSUJIMOTO
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Keywords: Compressor, Hydraulic turbine, Phase resonance, Rotor-stator interaction, Pressure fluctuation
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2011 Volume 39 Issue 10 Pages 594-605

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Abstract
Phase resonance was studied by using a centrifugal compressor for vacuum cleaner. It was found from experiments and CFD that pressure fluctuation at the volute outlet becomes the maximum when the rotational speed of the mode caused by the rotor-stator interaction agrees with the sound velocity. A simple one-dimensional theory is presented to explain the phase resonance in turbomachinery.
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