Simulation of a Centrifugal Pump by Using the Harmonic Balance Method

Table 3

Mesh information.

	Multigrid levels			Grid number (3rd level)				(at the 2nd level)
	1st level	2nd level	3rd level	Impeller	Inlet	Volute	Total	Moving wall	wall
Original	122,848	982,784	7,862,272	3,084,288	1,945,600	2,832,384	7,862,272	15–100	>100
Refined	231,888	1,855,104	14,840,832	8,552,448	1,704,960	4,583,424	14,840,832	1–10	<20