Research Article

Numerical Investigations of Unsteady Flow in a Centrifugal Pump with a Vaned Diffuser

Figure 11

Pressure signal for the probe located at the outlet of the impeller (left) and at the outlet of the diffuser (right). The signal in (c) is reconstructed using the 20 main frequencies selected in (b).
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(a) ā€‰ Original signal
961580.fig.0011b
(b) Fourier transform
961580.fig.0011c
(c) Reconstructed signal