Research Article
Pressure Distribution on the Inner Wall of the Volute Casing of a Centrifugal Pump
Table 4
Pressure fluctuation of pressure measurement point on the front wall of the volute casing.
| | State | Rotational speed (r/min) | Flow rate (m3/h) | Pressure fluctuation amplitude | | 1# (%) | 6# (%) | 11# (%) | 16# (%) | 21# (%) | 26# (%) |
| | Low speed | 1450 | 5.0 | 150.86 | 148.58 | 158.13 | 113.97 | 107.14 | 113.88 | | Moderate speed | 2000 | 6.0 | 118.94 | 107.50 | 128.74 | 88.44 | 72.74 | 82.43 | | Above average speed | 2175 | 7.5 | 110.85 | 102.27 | 131.60 | 74.99 | 61.92 | 64.83 | | High speed | 2900 | 7.5 | 78.11 | 79.84 | 81.37 | 39.85 | 39.68 | 41.67 |
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