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{
  "sample_id": 177,
  "geometry_type": "complex_airfoil",
  "geometry_parameters": {
    "type": "complex_airfoil",
    "profile": "NACA4412",
    "chord": 1.236649527156233,
    "thickness_scale": 0.7234490449777334
  },
  "rq_target": 0.0021799982513424627,
  "rq_actual": 0.0021799982513424627,
  "ra_actual": 0.001783734840007636,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
    360,
    107
  ],
  "physical_dimensions": [
    0.17871564344533894,
    0.06262871104066636
  ],
  "curvature_statistics": {
    "mean_slope": 0.0006958696756020805,
    "max_slope": 0.007334787001460018,
    "height_range": 0.10599879961394579,
    "mean_height": 0.032885451230641134,
    "std_height": 0.023903706510574274
  },
  "generation_timestamp": "2025-11-08T02:45:30.792852",
  "correlation_length": 0.0988502240586872,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 7,
    "perlin_persistence": 0.6694313068817049,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.4626127676101835,
    "fractal_modes": 96
  }
}