Table 2. FE mesh models with element size parameters for the ellipse head model.

Model no.	Mesh type	Max size (mm)	Min size (mm)	Elements	Inverted elements	Max element growth rate	Curvature factor
1	Coarser	59.96	0.2174	3,860	24	1.5	0.6
2	Coarse	59.96	0.2174	4,506	24	1.35	0.4
3	Normal	59.96	0.135	4,996	20	1.3	0.3
4	Finer	59.96	0.0563	5,594	Nil	1.25	0.25
5	Extra fine	59.96	0.0337	7,898	Nil	1.15	0.25
6	Extremely fine	59.96	0.009	11,590	Nil	1.1	0.2