Research Article
A Numerical Study on the Improvement of Suction Performance and Hydraulic Efficiency for a Mixed-Flow Pump Impeller
Table 3
Numerical analysis set of
factorial designs for the impeller design.
| | Set | (m) | (m) | i (°) | i (°) | Total head (m) | Total efficiency (%) | NPSHre (m) |
| | 1 | 0 | 0 | 3 | −1 | 63.24 | 96.65 | 6.36 | | 2 | 5 | 0 | 3 | 5 | 64.92 | 97.21 | 5.23 | | 3 | 0 | 7.2 | 3 | 5 | 64.07 | 97.61 | 5.64 | | 4 | 5 | 7.2 | 3 | −1 | 63.25 | 95.47 | 8.09 | | 5 | 0 | 0 | 9 | 5 | 64.18 | 97.55 | 6.15 | | 6 | 5 | 0 | 9 | −1 | 63.86 | 97.19 | 5.28 | | 7 | 0 | 7.2 | 9 | −1 | 63.83 | 97.18 | 5.74 | | 8 | 5 | 7.2 | 9 | 5 | 64.55 | 97.04 | 5.28 | | Center | 2.5 | 3.6 | 6 | 2 | 64.10 | 97.54 | 5.48 |
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