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Performance prediction of mixed-flow pumps
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 Title & Authors
Performance prediction of mixed-flow pumps
O, Hyeong-U; Yun, Ui-Su; Jeong, Myeong-Gyun; Ha, Jin-Su;
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The present study has tested semi-empirical loss models for a reliable performance prediction of mixed-flow pumps with four different specific speeds. In order to improve the predictive capabilities, this paper recommends a new internal loss model and a modified parasitic loss model. The prediction method presented here is also compared with that based on two-dimensional cascade theory. Predicted performance curves by the proposed set of loss models agree fairly well with experimental data for a variety of mixed-flow pumps in the normal operating range, but further studies considering 'droop-like' head performance characteristic due to flow reversal in mixed-flow impellers at low flow range near shut-off head are needed.
Mixed-Flow Pumps;Mean Streamline Analysis;Loss Models;Two-Dimensional Cascade Theory;Performance Prediction;
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