International Scholarly Research Notices

Research Article

Numerical Study on Pressure Fluctuations Reduction in Centrifugal Pumps: Influence of Radial Gap and Splitter Blades

Table 3

Numerical values of pressure fluctuations amplitudes in dB for the investigated configurations ( 𝑃 r e f = 1 𝑃 𝑎 ).
Configuration 𝐹 / 𝐹 B P 𝜃 = 2 5 ∘ (dB) Outlet duct (dB)
R1A+V1 0.2 47.72 47.07
1 77.58 70.71
2 55.75 45.60
3 48.32 24.75
R1A+V2 0.2 50.97 49.23
1 80.35 69.72
2 57.07 29.58
3 57.26 20.60
R1AS+V1 0.1 35.11 34.99
0.5 68.58 62.47
1 63.33 53.71
1.5 37.60 28.82
R1AS+V2 0.1 37.28 36.16
0.5 68.79 61.96
1 61.89 42.40
1.5 25.32 14.25