/cadence_blogs_8/b/cfd/posts/resolving-boundary-layers-with-unstructured-quad-and-hex-meshing-on-demand-webinar-1411081785All things being equal, CFD practitioners prefer to use hexahedral mesh cells in the boundary layer for the improved robustness and accuracy they bring to the flow solver. Traditionally, a hex grid would be created using a structured grid technique (en-USTelligent Community 12