Research Article

Experimental and Numerical Investigation of Pressure Fluctuation in a Low-Specific-Speed Centrifugal Pump with a Gap Drainage Impeller

Table 2

Grid independence analysis.

Number of grid elementsHead (m)Efficiency (%)

216971383.5125.57
325149383.3425.98
436584882.5326.73
524621482.4926.92
594136382.5126.74