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Table 1

Calculation results of different impedance hole sizes

Impedance hole diameter ratioPressure after pump (m)
Bottom pressure of one-way surge tank (m)
Water level of one-way surge tank (m)
MaxMinAmplitudeMaxMinAmplitudeMaxMinAmplitude
0.2 22.82 0.54 22.28 22.79 0.75 22.04 14 11.38 2.62 
0.3 22.82 1.02 21.80 22.79 2.37 20.42 14 9.20 4.80 
0.4 22.82 1.17 21.65 22.79 4.78 18.01 14 7.54 6.46 
0.5 22.82 1.25 21.57 22.79 6.67 16.12 14 6.68 7.32 
0.6 22.82 1.28 21.54 22.79 6.28 16.51 14 6.28 7.72 
1.0 22.82 1.31 21.51 22.79 5.90 16.89 14 5.90 8.10 
Impedance hole diameter ratioPressure after pump (m)
Bottom pressure of one-way surge tank (m)
Water level of one-way surge tank (m)
MaxMinAmplitudeMaxMinAmplitudeMaxMinAmplitude
0.2 22.82 0.54 22.28 22.79 0.75 22.04 14 11.38 2.62 
0.3 22.82 1.02 21.80 22.79 2.37 20.42 14 9.20 4.80 
0.4 22.82 1.17 21.65 22.79 4.78 18.01 14 7.54 6.46 
0.5 22.82 1.25 21.57 22.79 6.67 16.12 14 6.68 7.32 
0.6 22.82 1.28 21.54 22.79 6.28 16.51 14 6.28 7.72 
1.0 22.82 1.31 21.51 22.79 5.90 16.89 14 5.90 8.10 
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