Table 2.

Table of mesh information.

Domain name	Mesh number	Orthogonal quality	Minimum angle
S-shaped pipe	213248	0.36	18°
Impeller	396002	0.30	18°
Pump chambers and clearance	292368	0.90	70°
Volute	499744	0.33	27°
Gas–liquid separation chamber	399159	0.29	18°
Outlet pipe	200652	0.75	45°