1817 ウォータージェットポンプ低流量域における不安定特性の改善に関する研究

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  • Experimental Study on Unstable Characteristic of Water Jet Pump

抄録

Experimental study was done to investigate the mechanism of the so-called drooping characteristics of Water Jet Pump. The flow-field was measured at the impeller inlet and outlet. The unsteady pressure on the casing wall was measured, and moreover, the inner flow at off design point was studied. As a result of the present study, the reason of this instability was found to be the secondary flow and the pre-rotation caused by the secondary flow.

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