Therefore, a finer mesh is required to accurately distinguish
the velocity gradients appearing near the skirt.
The mesh considered in the computation is unstructured
fully triangular as depicted in Figure 3.14. The mesh size
ranges from 5 mm near the walls to 0.8 m in the far field.
A fine grid resolution is compulsory to capture the velocity
gradients in the boundary layers and early separation
whereas a coarser mesh is sufficient in the far field.
Figure 3.14 illustrates how the mesh cells are arranged
within the boundary conditions. Several zoom levels of
the mesh are shown.