{
  "material": {
    "E": 1.0,
    "poisson_ratio": 0.3,
    "thermal_conductivity":0.1
  },
  "topology": {
    "max_loop": 100,
    "volfrac": 0.5,
    "penal": 2.0,
    "r_min": 1.5
  },
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      "lx": 2,
      "ly": 40,
      "lz": 30
    },
    "visual_model":"2-box-refined.obj"
  },
  "mechanical_boundary_condition":{
    "NBC": [
      {
        "min": [0, 1, 0],
        "max": [1, 1, 0],
        "val": [0.0, 0.0, -1.0]
      }

    ],
    "DBC": [
      {
        "min": [0, 0, 0],
        "max": [1, 0, 1],
        "dir": [1, 1, 1]
      }
    ]
  },
  "thermal_boundary_condition": {
    "NBC": [
      {
        "min": [0, 0.25, 0.5],
        "max": [1, 0.25, 0.5],
        "heat_flux": 0.06, "unit": "W/m^2"
      },
      {
        "min": [0, 0.75, 0.5],
        "max": [1, 0.75, 0.5],
        "heat_flux": 0.06, "unit": "W/m^2"
      }

    ],
    "DBC": [
      {
        "min": [0, 0, 0],
        "max": [1, 0, 1],
        "temperature": 312, "unit": "K"

      }
    ]
  }
}