Research Article
Flow Pattern Analysis and Performance Improvement of Regenerative Flow Pump Using Blade Geometry Modification
Table 5
Results of numerical study at design flow coefficient.
| | Angles | Efficiency | Ψ (head coefficient) |
| Symmetric angle blades | | 29.97 | 0.412 | | 39.95 | 0.737 | | 42.52 | 0.963 | | 42.42 | 1.035 | | 44.70 | 1.160 | | 43.66 | 1.203 | | 41.01 | 1.044 |
| Nonsymmetric angle blades () | | 33.07 | 0.422 | | 39.10 | 0.733 | | 41.97 | 0.981 | | 42.42 | 1.035 | | 42.95 | 1.069 | | 40.71 | 0.947 | | 37.96 | 0.759 |
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