Resolving Boundary Layers with Unstructured Quad and Hex Meshing: On-Demand Webinar - Another Fine Mesh

All 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 (aka mapped mesh) but these can require too much manual intervention to generate efficiently. Unstructured

Resolving Boundary Layers with Unstructured Quad and Hex Meshing: On-Demand Webinar - Computational Fluid Dynamics - Cadence Blogs - Cadence Community

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Untangling all-hex meshes via adaptive boundary optimization - ScienceDirect

Standard Mesher, Meshing for CAE, Documentation

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Standard Mesher, Meshing for CAE, Documentation

PDF] Generation of Quad and Hex Dominant Semistructured Meshes Using an Advancing Layer Scheme

PyFR - Another Fine Mesh

Unstructured Meshing For CFD, PDF, Geometry