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Experimental Estimate of Helical Inducer Blade Force in Cavitating Surge Condition

Furukawa, Akinori and Ishizaka, Koichi and Watanabe, Satoshi (2001) Experimental Estimate of Helical Inducer Blade Force in Cavitating Surge Condition. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA. (Unpublished)

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An attachment of inducer is a powerful method to improve the cavitation performance of a turbo-pump. Cavitation surge phenomena, occurring under the severe suction pressure at a partial flow rate, is focused in the present paper. Flow measurements were carried out at the inlet and outlet sections of a flat-plate helical inducer with the solidity of 2.0 and tip blade angle of 11° by using a total-head yaw-meter with a phase locked sampling method in one period of the shaft rotation or the cavitation oscillation. Time variation of the flow distributions during the oscillation is clarified with observed cavitation behaviors. After these results are compared with those in conditions just before and after the oscillations, the fluctuating blade forces are estimated from the blade to blade distributions of casing wall pressures measured in these conditions.

Item Type:Conference or Workshop Item (Lecture)
Subject Keywords:turbomachinery
Record Number:CAV2001:sessionB8.004
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Usage Policy:The papers of this symposium proceedings are protected by copyright, retained by the authors. Authors control translation and reproduction rights to these works. However, readers are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format. This permission is in addition to rights of reproduction granted under Section 107, 108, and other provisions of the U.S. Copyright Act.
ID Code:141
Deposited By: Imported from CAV2001
Deposited On:20 Jun 2001
Last Modified:03 Oct 2019 22:49

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