Research Article
Pressure Distribution on the Inner Wall of the Volute Casing of a Centrifugal Pump
Table 5
Pressure fluctuation amplitude on the middle section of volute casing.
| ā | Rotational speed (r/min) | Flow rate (m3/h) | Pressure fluctuation amplitude | 31# (%) | 38# (%) | 43# (%) | 45# (%) |
| Low speed | 1450 | 5.0 | 62.57 | 75.44 | 72.76 | 57.14 | Moderate speed | 2000 | 6.0 | 32.47 | 35.43 | 33.26 | 40.56 | Above average speed | 2175 | 7.5 | 27.60 | 33.72 | 40.42 | 35.27 | High speed | 2900 | 7.5 | 21.47 | 19.48 | 17.51 | 11.13 |
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