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An experimental study on the unsteady pressure distribution around the impeller outlet of a centrifugal pump

Stickland, M.T. and Scanlon, T.J. and Parrondo, J. and Gonzalez-Perez, J. and Fernandez-Francos, J. (2000) An experimental study on the unsteady pressure distribution around the impeller outlet of a centrifugal pump. In: Proceedings of ASME 2000 Fluids Engineering Division Summer Meeting. ASME. ISBN 0791819795

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    Abstract

    An experimental investigation is presented which analyzes the fluctuating pressure field existing in the volute of a centrifugal pump, in order to characterize the effects of blade-tongue interaction. For that purpose, pressure signals were obtained simultaneously at different locations on the volute casing and for different flow-rates by means of fast-response pressure transducers. Particular attention was paid to the pressure fluctuations at the blade passage frequency, regarding both amplitude and phase delay relative to the motion of the blades. The dependence of the obtained pressure fluctuations with respect to both flow-rate and position along the volute clearly indicates the leading role played by the tongue in the impeller-volute interaction and the strong increase of the magnitude of the dynamic forces in off-design conditions.

    Item type: Book Section
    ID code: 7437
    Keywords: centrifugal pump, pumps, flow dynamics, numerical fluid analysis, fluid analysis, Mechanical engineering and machinery
    Subjects: Technology > Mechanical engineering and machinery
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 26 Jan 2009 16:08
    Last modified: 12 Mar 2012 18:02
    URI: http://strathprints.strath.ac.uk/id/eprint/7437

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