Abstract: In order to clarify effects of an accumulator, pipe lengths and gradients of pressure and suction performances on cavitation surge, onedimensional stability analyses of cavitation surge were performed in hydraulic systems ...

Abstract: Under unsteady operating conditions in turbomachinery, the performance is unable to respond rapidly enough to follow characteristic curves for the steady condition. To design a reliable turbomachinery under unexpected ...

Abstract: To examine the dynamic characteristics of turbomachinery and cavitation, the pulsating flow rates should be evaluated. As it is difficult to measure these pulsating flow rates quantitatively, systematic research has not ...

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Abstract: This paper elucidates the performance degradation and flow instability of an axial fan caused by the presence of disk-shaped obstacles upstream of the fan, such as wall surfaces. The increase in pressure loss and the ...