Critical Hydraulic Eccentricity Estimation in Vertical Turbine Pump Impeller to Control Vibration

Table 2

Details of mesh statistics of four test cases.

Mesh	Bell mouth	Impeller	Bowl	Column pipe	Total nodes (million)	Head (m)	Absolute deviation with test data (%)
Mesh 1	0.017	0.23	0.31	0.12	0.68	22.6	—
Mesh 2	0.02	0.265	0.365	0.17	0.82	23.1	2.2
Mesh 3	0.0287	0.32	0.415	0.206	0.97	23.5	1.7
Mesh 4	0.033	0.375	0.47	0.235	1.12	23.6	0.5