Table 3 Boundary condition settings.

From: Experimental study and numerical simulation of internal flow dissipation mechanism of an axial-flow pump under different design parameters

Location

Boundary condition

Inlet of pump

Total pressure

outlet of pump

Mass discharge

Solid wall

No-slip wall

Interfaces on both sides of impeller in stabilization calculation

Stage

Other computing domain interfaces

None

Method of mesh connection

GGI

Downstream velocity limit

Stage average velocity

Impeller shroud velocity

Counter-rotating wall

Residual type

RMS

Convergence accuracy

10−5