Numerical Investigation of Pressure Fluctuation Characteristics in a Centrifugal Pump with Variable Axial Clearance

Table 4

Comparison of the dominant frequencies at the points in the front gap.

	M1	M2	M3
	FC1	3	3	3
FC2	3	3	3
FC3	9	9	9
FC4	1/6	9	3

is the dominant frequency.