The white lines show the original mesh and the green lines show the refined (and redistributed) mesh. Note that the prism stacks have been directionally refined maintaining the layer structure.
In this example of the flow around a turbine blade, the automatic feature detection did not identify the entire leading edge and blade tip regions. To properly resolve the flow in this region, the refinement area was manually extended to include this location. The areas of the mesh that will be refined are shown in blue in the pictures below.
This example shows refinement at the leading edge of a blade demonstrating that new points are placed onto the original surface. The white lines show the original mesh and the green lines show the refined mesh. Note the substantial motion in the lower portion of the leading edge.