Meshing

Studio’s current production meshing engine builds prism–octree meshes for external, internal and multi-region workflows.

How the mesh is organised

An adaptive octree forms the volume core and distributes resolution across the domain. Complete prism columns grow from resolved wall surfaces to capture near-wall gradients. Transition cells connect the prism front to the octree core. The resulting mesh carries named boundary patches, cell zones and quality metadata into FluxCore.

This structure gives you fine wall-normal control without paying for the same resolution everywhere in the domain.

Main controls

Control	Engineering effect
Domain bounds	Defines the computational extent and clearance around the model.
Minimum spacing	Limits the smallest octree cells in refined regions.
Maximum spacing	Limits the coarsest cells away from important geometry.
Target cell count	Sets the planning target used to calibrate global spacing.
Refinement zones	Preserve resolution in wakes, gaps, jets, rotating regions or thermal plumes.
Prism-layer count	Sets the number of near-wall layers.
First-layer height	Controls the wall-normal resolution at the surface.
Growth rate	Controls how rapidly prism thickness increases away from the wall.

External-flow workflow

Upload STL or a prepared surface archive, define the outer domain, select surface preparation, choose a cell budget and configure prism layers. Studio can preserve a clean surface or create a robust meshing surface when the input is unsuitable. Always compare the prepared surface against the original geometry in critical areas.

Conjugate heat-transfer workflow

Upload a named multi-solid STEP assembly. The CHT route builds a shared, conformal multi-region mesh with material cell zones and paired interfaces. Specify the expected region names and contacts so topology mistakes fail early instead of creating a plausible-looking but incorrect thermal model.

Rotating regions

Define cylindrical rotating zones with a centre, axis, width, height and rotational speed. Verify that the selected region contains the intended cells and that rotating and non-rotating walls are named consistently.

Quality and completion

The completed job includes the CGNS mesh and a manifest containing count, quality and timing information. Review the realised cell count, prism coverage, cell-quality limits, patch names, material zones and interfaces before creating a simulation.

See the detailed meshing guide for individual controls.