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Table 1

Sample of frequency response results for Model 3 and Model 4 under different operating conditions with different percentages of blockage

Sl. no.Operating pressure (bar)Blockage percentageNo. of oscillations created through valveVelocity of flow (m/s)Frequency response obtained from time series data
Number of peaks
Model 3 
1.7 10% 3 times 0.35 
4 times 0.35 
5 times 0.35 
6 times 0.35 
7 times 0.35 
8 times 0.35 
1.8 20% 3 times 0.39 
4 times 0.39 
5 times 0.39 
6 times 0.39 
7 times 0.39 
8 times 0.39 
2.0 30% 3 times 0.45 
4 times 0.45 
5 times 0.45 
6 times 0.45 
7 times 0.45 
8 times 0.45 
2.1 40% 3 times 0.47 
4 times 0.47 
5 times 0.47 
6 times 0.47 
7 times 0.47 
8 times 0.47 
Model 4 
1.5 10% 3 times 0.33 
4 times 0.33 
5 times 0.33 
6 times 0.33 
7 times 0.33 
8 times 0.33 
1.7 20% 3 times 0.35 
4 times 0.35 
5 times 0.35 
6 times 0.35 
7 times 0.35 
8 times 0.35 
1.8 30% 3 times 0.36 
4 times 0.36 
5 times 0.36 
6 times 0.36 
7 times 0.36 
8 times 0.36 
1.9 40% 3 times 0.38 
4 times 0.38 
5 times 0.38 
6 times 0.38 
7 times 0.38 
8 times 0.38 
Sl. no.Operating pressure (bar)Blockage percentageNo. of oscillations created through valveVelocity of flow (m/s)Frequency response obtained from time series data
Number of peaks
Model 3 
1.7 10% 3 times 0.35 
4 times 0.35 
5 times 0.35 
6 times 0.35 
7 times 0.35 
8 times 0.35 
1.8 20% 3 times 0.39 
4 times 0.39 
5 times 0.39 
6 times 0.39 
7 times 0.39 
8 times 0.39 
2.0 30% 3 times 0.45 
4 times 0.45 
5 times 0.45 
6 times 0.45 
7 times 0.45 
8 times 0.45 
2.1 40% 3 times 0.47 
4 times 0.47 
5 times 0.47 
6 times 0.47 
7 times 0.47 
8 times 0.47 
Model 4 
1.5 10% 3 times 0.33 
4 times 0.33 
5 times 0.33 
6 times 0.33 
7 times 0.33 
8 times 0.33 
1.7 20% 3 times 0.35 
4 times 0.35 
5 times 0.35 
6 times 0.35 
7 times 0.35 
8 times 0.35 
1.8 30% 3 times 0.36 
4 times 0.36 
5 times 0.36 
6 times 0.36 
7 times 0.36 
8 times 0.36 
1.9 40% 3 times 0.38 
4 times 0.38 
5 times 0.38 
6 times 0.38 
7 times 0.38 
8 times 0.38 
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