TY - JOUR
T1 - One-dimensional analysis method for cavitation instabilities of a rotating machinery
AU - Kawasaki, Satoshi
AU - Shimura, Takashi
AU - Uchiumi, Masaharu
AU - Iga, Yuka
N1 - Publisher Copyright:
Copyright © 2018 by ASME.
PY - 2018/2
Y1 - 2018/2
N2 - Rotating cavitation is an important problem, which makes it difficult to design reliable rotating machines. In this study, a simple analysis method that tried to evaluate the cavitation instabilities of a rotating machinery by using one-dimensional (1D) system analysis software was attempted. In this method, cavitation compliance and mass flow gain factor are distributed in each flow path of the inducer. Analysis results show that cavitation instabilities, including rotating phenomena, exist. With the evolved analysis model, effects of various parameters on the eigenvalues of the system were investigated. Analysis results agreed with inducer test results qualitatively. Furthermore, by the analysis considered whirl motion of the rotor, effects of it on cavitation instabilities were investigated.
AB - Rotating cavitation is an important problem, which makes it difficult to design reliable rotating machines. In this study, a simple analysis method that tried to evaluate the cavitation instabilities of a rotating machinery by using one-dimensional (1D) system analysis software was attempted. In this method, cavitation compliance and mass flow gain factor are distributed in each flow path of the inducer. Analysis results show that cavitation instabilities, including rotating phenomena, exist. With the evolved analysis model, effects of various parameters on the eigenvalues of the system were investigated. Analysis results agreed with inducer test results qualitatively. Furthermore, by the analysis considered whirl motion of the rotor, effects of it on cavitation instabilities were investigated.
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U2 - 10.1115/1.4037987
DO - 10.1115/1.4037987
M3 - Article
AN - SCOPUS:85033581987
VL - 140
JO - Journal of Fluids Engineering, Transactions of the ASME
JF - Journal of Fluids Engineering, Transactions of the ASME
SN - 0098-2202
IS - 2
M1 - 021113
ER -