research/data/refinement_comparison.json

{
  "checks": [
    {
      "K": 3,
      "grid": 12,
      "dt": 0.0005,
      "helicity_residual_max": 6.187276001685857e-13,
      "seconds": 0.8745222570000806
    },
    {
      "K": 4,
      "grid": 15,
      "dt": 0.0005,
      "helicity_residual_max": 1.5701713102736926e-12,
      "seconds": 1.3489761949999775
    },
    {
      "K": 5,
      "grid": 18,
      "dt": 0.0005,
      "helicity_residual_max": 1.7324654701970396e-12,
      "seconds": 2.121069415999955
    }
  ],
  "warning": "Forward convergence evidence only; no interval PDE certificate."
}