| # NASA 2DZP — 2D Zero-Pressure-Gradient Flat Plate |
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| Validation case from the **NASA TMR Collaborative Testing Challenge 2022** ([turb-prs2022](https://tmbwg.github.io/turbmodels/turb-prs2022.html)). |
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| ## 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 |
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|
| ## 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 |
| ``` |
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| 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. |
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| ## 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+` |
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| Then `python plots/plot_profiles.py` overlays the baseline + reference + your model. |
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