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The rotordynamic forces on a centrifugal pump impeller in the presence of cavitation (1990)

Franz, R. ; Brennen, C. E. ; Caughey, T. K. ; [et al.]

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Publication Date: 2019-07-12

Description: Fluid-induced rotordynamic forces on a centrifugal pump impeller whirling along a trajectory eccentric to its undeflected position in the presence of cavitation were measured using the experimental facility described by Jery (1987). The force measured is a combination of a steady radial force due to the volute asymmetries and an unsteady force due to the eccentric motion of the rotor. It was found that, compared to the noncavitation condition, a cavitation corresponding to a head loss of 3 percent had little effect upon the unsteady force. However, a lesser degree of cavitation at the design point, was found to increase the destabilizing force for a particular set of whirl ratios.

Keywords: MECHANICAL ENGINEERING

Type: ASME, Transactions, Journal of Fluids Engineering (ISSN 0098-2202); 112; 264-271

Format: text

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