{
  "sample_id": 40,
  "geometry_type": "complex_airfoil",
  "geometry_parameters": {
    "type": "complex_airfoil",
    "profile": "NACA64-212",
    "chord": 0.61607475796937,
    "thickness_scale": 0.8843623281637403
  },
  "rq_target": 0.0036441333468248465,
  "rq_actual": 0.003644133346824846,
  "ra_actual": 0.0029564911357810924,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "end_of_life_corrosion",
  "method": "hybrid",
  "grid_resolution": [
    378,
    129
  ],
  "physical_dimensions": [
    0.1867377038565603,
    0.0968991886961722
  ],
  "curvature_statistics": {
    "mean_slope": 0.0011232107056907711,
    "max_slope": 0.014375022030155261,
    "height_range": 0.18956465738673467,
    "mean_height": 0.0245776170532356,
    "std_height": 0.04154819396536546
  },
  "generation_timestamp": "2025-11-08T02:26:34.865232",
  "correlation_length": 0.01617037089484099,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.7620674571050406,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.3206395265853525,
    "fractal_modes": 83
  }
}