Hydrodynamic Performance and Cavitation Analysis in Bottom Outlets of Dam Using CFD Modelling

Table 3

Mesh sensitivity analysis.

Parameters	Type of mesh
	Cell size 20% smaller	Cell size 10% smaller	Main	Cell size 10% larger	Cell size 20% larger
Velocity (m/s)	18.21	18.13	18.05	17.42	17.1
Analytical velocity (m/s)	18.9	18.9	18.9	18.9	18.9
Error (%)	3.65	4.07	4.49	7.83	9.52