Wall Pressure and Blade Surface Pressure in a Side Channel Blower

Figure 17

Phase-locked ensemble-averaged wall pressure for four different axial and circumferential positions at a rotational speed of 50 Hz and = 28,217 Pa measured at the unsteady measurement positions. Each subfigure holds the plots for four different axial positions at the same circumferential position according to Figure 7. The term was chosen instead of to clarify the rotation of the impeller.

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