iter_config.json

{
    "reactor_name": "ITER-Like-Demo",
    "grid_resolution": [129, 129],
    "dimensions": {
        "R_min": 2.0,
        "R_max": 10.0,
        "Z_min": -6.0,
        "Z_max": 6.0
    },
    "physics": {
        "plasma_current_target": 15.0,
        "vacuum_permeability": 1.0
    },
    "coils": [
        { "name": "PF1", "r": 3.0, "z": 7.6, "current": 8.0 },
        { "name": "PF2", "r": 8.2, "z": 6.7, "current": -1.3229 },
        { "name": "PF3", "r": 12.0, "z": 2.7, "current": -3.0182 },
        { "name": "PF4", "r": 12.6, "z": -2.3, "current": -2.9829 },
        { "name": "PF5", "r": 8.4, "z": -6.7, "current": -1.3663 },
        { "name": "PF6", "r": 4.3, "z": -7.6, "current": -0.3880 },
        { "name": "CS",  "r": 1.7, "z": 0.0, "current": 0.1543 }
    ],
    "solver": {
        "solver_method": "multigrid",
        "max_iterations": 1000,
        "convergence_threshold": 0.0001,
        "relaxation_factor": 0.1,
        "sor_omega": 1.8
    }
}