Numerical Research on Effects of Splitter Blades to the Influence of Pump as Turbine

Table 5

Amplitude of frequency domain and MPF at outlet pipe monitoring points (see Figure 11).

Points	Frequency	9	10
Without splitter	50 Hz	3646.66	3112.41
	100 Hz	523.45	705.60
	150 Hz	385.90	383.59
	MPF	2.48	2.25
With splitter	50 Hz	745.41	1416.07
	100 Hz	754.98	524.37
	150 Hz	544.05	510.22
	MPF Hz	1.02	1.30