International Journal of Rotating Machinery / 2015 / Article / Tab 2

Research Article

Simulation of a Centrifugal Pump by Using the Harmonic Balance Method

Table 2

The predicted head for different harmonics.

Calculation methodsHB_1 modeHB_2 modesHB_3 modesDual time steppingExperiment

Time consuming8 h12 h16 h~14 d
Average head (m)7.5177.5707.6947.7487.75
Relative error−3.01%−2.32%−0.73%0

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