03 Outdoor Domain Mesh
Main Components
Define a cylindrical simulation domain for Eddy3D. One cylindrical mesh serves all wind directions; the cylinder side faces switch between inlet and outlet per direction. The auto radius targets the 3% frontal-blockage limit of ASCE/SEI CWE Prestandard AC 6-8b, which the case component verifies. Model surrounding buildings within ~240 m of the study area (ASCE 49 proximity guidance) before trusting results near the context edge.
Compute the snappyHexMesh refinement level needed to reach a target cell size (each level halves the cell size).
Configure mesh refinement, layers, and grading for Eddy3D.
Add a custom snappyHexMesh refinement region (a box, solid or surface) to a written case's mesh. Refines the cells inside/near the geometry to the chosen level; re-run meshing separately afterward to apply it.
Generate centered surface samples on the actual faces of Brep, surface, or mesh geometry.