Gate 1 — Mesh Quality (+1)
Gate 1 — Mesh Quality
| Metric | Limit | Source |
|---|---|---|
| Max skewness | < 4.0 | OpenFOAM checkMesh default |
| Max non-orthogonality | < 70 deg | OpenFOAM checkMesh default |
| Cell count | >= 100 | Pipeline minimum |
Gate uses checkMesh when OpenFOAM is sourced; falls back to gmsh Python API
quality metric; falls back to heuristic line count for bare environments.
Gate 2 — CFD Convergence
| Metric | Limit | Source |
|---|---|---|
| Final residuals (all) | < 1e-4 | Standard CFD convergence |
| Force balance error | < 5% | Conservation check |
Parses OpenFOAM log.simpleFoam for residual lines. Also detects hard
divergence markers (FOAM FATAL ERROR, Floating point exception, etc.).