CRID · Automated polyhedral mesh generator

From STL to a CFD-ready mesh in five steps.

CRID turns a surface geometry into a trimmed hexahedral mesh with boundary layers, using cut-cell and advancing-layer methods. No meshing expertise required.

Download CRID Watch tutorials
  • STLin
  • OpenFOAM · Fluentout
  • Windows · Linuxplatforms
C-NUMVERSE CRID :: dlr_w_cube22.crd
GeometryMeshGenerationBoundary&Quality
CRID desktop application showing a refined surface mesh on a wing-body geometry
Why CRID

Automatic where it should be.
Precise where you need it.

Built for engineers who want a good mesh today, not a meshing course this quarter.

Anisotropic refinement

Refine each axis independently so thin, elongated features get resolution only where it matters.

Cut-cell trimmed hexahedra

A Cartesian background grid is trimmed by the geometry, producing a body-fitted polyhedral mesh automatically.

Advancing-layer boundary layers

Prism layers grow from the wall with first-layer thickness, count and expansion ratio you control.

Feature detection by angle or pick

Sharp edges are found by dihedral angle, or simply picked in the 3D view with the mouse.

Patch merge and split

Group surfaces into boundary patches, or split a patch along feature segments in one click.

OpenFOAM and Fluent export

Write polyMesh with cell zones or a Fluent .msh file and move straight to the solver.

Workflow

Mesh generation with CRID

The left panel walks you through the same five steps every time: Geometry, Mesh Generation, Boundary & Zone, then Export.

01

Set up geometry

Import STL, group surfaces into patches, transform if needed.

02

Identify feature segments

Detect sharp edges by angle or pick them with the mouse.

03

Establish patches

Merge selected patches or split them along feature segments.

04

Specify mesh conditions

Base cell size, per-patch refinement levels, boundary-layer settings.

05

Generate the mesh

Check, refine, cut and add layers, then export to your solver.

Made with CRID

Ships, wings, propellers, pipes.

External aerodynamics, hull resistance, rotating machinery and internal flow, all from the same workflow.

Explore the product
  • Surface mesh on a wing-body with refinement boxes
  • Propeller blade mesh with boundary layers
  • Cut-cell mesh section through a box geometry
  • Polyhedral mesh on a bent pipe
Learn in minutes

Short tutorials, real geometries

All tutorials
Getting started

SUBOFF submarine mesh generation

External flow

External mesh around the Stanford bunny

Ship hydrodynamics

KCS hull resistance mesh

Ready to mesh your geometry?

Grab the evaluation build, or tell us about your case and we will help you set it up.

Download CRIDContact us