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{
  "sample_id": 74,
  "geometry_type": "complex_airfoil",
  "geometry_parameters": {
    "type": "complex_airfoil",
    "profile": "NACA4412",
    "chord": 1.1438504145909616,
    "thickness_scale": 0.8504043950433332
  },
  "rq_target": 0.0011388966511734003,
  "rq_actual": 0.0011388966511734003,
  "ra_actual": 0.0009418584979693444,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "structural_degradation",
  "method": "hybrid",
  "grid_resolution": [
    216,
    151
  ],
  "physical_dimensions": [
    0.15937046169517566,
    0.040103279688941985
  ],
  "curvature_statistics": {
    "mean_slope": 0.0007541382964244861,
    "max_slope": 0.011086571290671135,
    "height_range": 0.11586311087149975,
    "mean_height": 0.0303607774353251,
    "std_height": 0.0259160932688794
  },
  "generation_timestamp": "2025-11-08T02:29:55.251418",
  "correlation_length": 0.051088246643985376,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 8,
    "perlin_persistence": 0.7895579266562932,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.33590394562880294,
    "fractal_modes": 92
  }
}