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3c260e3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | # NASA 2DZP — 2D Zero-Pressure-Gradient Flat Plate
Validation case from the **NASA TMR Collaborative Testing Challenge 2022** ([turb-prs2022](https://tmbwg.github.io/turbmodels/turb-prs2022.html)).
## Required metrics
1. **Cf vs. x** — skin-friction along plate
2. **u⁺ vs. log₁₀(y⁺)** at x = 0.97 — boundary-layer profile compared with theory
## Folder layout
```
NASA_2DZP/
├── baseline_komegasst/ k-ω SST RANS integral profiles (.dat + .csv)
├── highfidelity/ Theory + experimental references (.dat + .csv)
└── plots/ Pre-rendered comparison figures + plot_profiles.py
```
The full OpenFOAM case (mesh, fields, run scripts, extraction code) is hosted separately on the heavy CFD-asset Hugging Face dataset linked in the paper.
## Solver / setup
- **Solver**: `rhoSimpleFoam` (compressible steady)
- **Turbulence model**: `kOmegaSST` (baseline, no augmentation)
- **Grid**: 545 × 385, finest of NASA TMR sequence
- **Re_L**: 5×10⁶ (L = 2)
- **Inflow**: M = 0.2
## Submission format
Provide two files (CSV or Tecplot .dat) matching the columns of the bundled baseline:
- `2DZP_cf.csv` — columns: `zone`, `x`, `Cf`
- `2DZP_u+y+.csv` — columns: `zone`, `log(y+)`, `u+`
Then `python plots/plot_profiles.py` overlays the baseline + reference + your model.
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