TY - JOUR
T1 - Theoretical Analysis for Passage and Exit Flow of Two Dimensional Centrifugal Impeller with Leading Edge Cavitation. (Effects of Blade Number and Blade Angle)
AU - Nishiyama, Hideya
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1988
Y1 - 1988
N2 - A theoretical analysis of passage and exit flow of a two dimensional logarithmic impeller with leading edge cavitation by using the singularity method is performed. In the wide parametric calculation, the flow features of impeller passage such as the cavity characteristics and the distributions of the relative velocity, and the static pressure are clarified with the flow rate, the blade number and the blade angle. And in the case of both back and face cavitation, the distributions of the static pressure, relative flow angle and the slip velocity at the impeller exit are also clarified with the blade number and the blade angle. And further, the changes of the slip factor and the impeller efficiency by the cavitation are shown to be determined from the simple formula. Finally, a comparison of the present calculated results with the existing experimental data and former calculated results is made.
AB - A theoretical analysis of passage and exit flow of a two dimensional logarithmic impeller with leading edge cavitation by using the singularity method is performed. In the wide parametric calculation, the flow features of impeller passage such as the cavity characteristics and the distributions of the relative velocity, and the static pressure are clarified with the flow rate, the blade number and the blade angle. And in the case of both back and face cavitation, the distributions of the static pressure, relative flow angle and the slip velocity at the impeller exit are also clarified with the blade number and the blade angle. And further, the changes of the slip factor and the impeller efficiency by the cavitation are shown to be determined from the simple formula. Finally, a comparison of the present calculated results with the existing experimental data and former calculated results is made.
KW - Centrifugal Impeller
KW - Impeller Efficiency
KW - Leading Edge Cavitation
KW - Parametric Study
KW - Pressure Coefficient
KW - Relative Velocity Vector
KW - Singularity Method
KW - Slip Factor
KW - Slip Velocity
KW - Velocity Triangle
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U2 - 10.1299/kikaib.54.1703
DO - 10.1299/kikaib.54.1703
M3 - Article
AN - SCOPUS:0024036738
VL - 54
SP - 1703
EP - 1709
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 503
ER -