Discussion: “Experimental Measurements of Hydrodynamic Radial Forces and Stiffness Matrices for a Centrifugal Pump-Impeller” (Chamieh, Dimitri S., Acosta, Allan J., Brennen, Christopher E., and Caughey, Thomas K., 1985, ASME J. Fluids Eng., 107, pp. 307–315)
Abstract:As one who has the same interest in the hydrodynamic forces of whirling centrifugal impellers, I would like to express my respect for carrying out such delicate and complex experiments successfully. Following are a few comments on your result.1 Despite a remarkable difference in the average volute forces F Q of Volute A and B, the difference in the stiffness matrices of both volutes is surprisingly small. This may imply that stiffness matrices are insensitive to the configuration of volute casing. It is, howev… Show more
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