Research Article
Numerical Research on Performance of High-Speed Partial Emission Pump
Table 1
Geometric parameters of the high-speed partial emission pump.
| | Flow passage component | Variable | Value |
| | Design flow rate | Qdes (m3/h) | 8 | | Design head | Hdes (m) | 420 | | Rotational speed | n (rev/min) | 10400 |
| | Impeller | Diameter D2 (mm) | 141 | | Number of blades | 8 | | Exit width b2 (mm) | 13 | | Exit angle (°) | 90 | | Front cone angle (°) | 13.5 |
| | Inducer | Outer diameter (mm) | 42.2 | | Number of blades | 2 | | Inlet flow coefficient | 0.086 | | Tip diameter Dt (mm) | 7.5 | | Installation angle of blade βi (°) | 8 | | Inlet wheel ratio Rd1 (mm) | 0.186 | | Outlet wheel ratio Rd2 (mm) | 0.354 | | Cascade consistency τ | 2.4 |
| | Volute | Inside diameter (mm) | 162 | | Exit spread angle (°) | 8 | | Diffusion section exit diameter (mm) | 8.5 |
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