Skip to main content

Table 3 Natural frequencies of rotor system under different cavitation conditions

From: Unsteady Flow and Structural Behaviors of Centrifugal Pump under Cavitation Conditions

Mode

Non-cavitation (Hz)

NPSH = 5.71 m (Hz)

NPSH = 2.58 m (Hz)

NPSH = 1.68 m (Hz)

NPSH = 1.10 m (Hz)

1

136.79

136.48

136.41

136.35

135.84

2

156.98

156.92

156.91

156.89

156.70

3

156.99

156.93

156.91

156.90

156.71

4

779.66

779.60

779.59

779.57

779.44

5

779.84

779.78

779.77

779.75

779.62

6

1441.4

1441.4

1441.4

1441.4

1441.4