Figure 1

Example of a non-conformal non-steady 2D grid with oblateness governed by three choices of parameters \mathbf{(}{\mathit{a}}_{\mathbf{1}}\mathbf{,}{\mathit{a}}_{\mathbf{2}}\mathbf{,}{\mathit{a}}_{\mathbf{3}}\mathbf{)} as defined in equation ( 1 ). (a) corresponds to (a_1,a_2,a_3):(1,0,0), (b): (0.8,0,0), (c): (0.8,0,0.5) and (c): (0.8,0.2,0.5).