Performance prediction of mixed-flow pumps

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This paper presents the mean streamline analysis using the empirical loss models for performance prediction of mixed-flow pumps with high specific speeds. A new internal loss model to describe the effect of flow separation on the characteristic head-capacity curve with a dip in the low flow range is developed and a modified recirculation loss model for calculation of parasitic loss due to flow recirculation at the impeller exit is suggested in this study. The prediction performance of the proposed method here is tested against four sets of measured total heads and efficiencies of mixed-flow pumps, and it is also compared with that based on two-dimensional cascade theory. Predicted results by the present set of loss models agree very well with experimental data for a variety of mixed-flow pumps over the normal operating conditions.
Publisher
PROFESSIONAL ENGINEERING PUBLISHING LTD
Issue Date
1998
Language
English
Article Type
Article
Keywords

IMPELLER

Citation

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY, v.212, no.A2, pp.109 - 115

ISSN
0957-6509
DOI
10.1243/0957650981536637
URI
http://hdl.handle.net/10203/69993
Appears in Collection
ME-Journal Papers(저널논문)
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