{
  "calc": {
    "n_objects": 10,
    "width": 10.0,
    "height": 10.0,
    "natural_radius": 4.0,
    "energy": "radial-t"
  },
  "sim": {
    "mode": "flow",
    "step_size": 0.05,
    "threshold": 0.0001
  }
}

/*
# ARR = np.array([
#   [1, 1], [3, 1], [5, 1],
#   [1, 3], [3, 3], [5, 3],
#   [1, 5], [3, 5], [5, 5],
#   [1, 7], [3, 7], [5, 7],
#   [1, 9], [3, 9], [5, 9],
#   [7, 1], [8, 1], [9, 1],
#   [7, 2], [8, 2], [9, 2],
#   [7, 3], [8, 3], [9, 3],
#   [7, 4], [8, 4], [9, 4],
#   [7, 5], [8, 5], [9, 5],
#   [7, 6], [8, 6], [9, 6],
#   [7, 7], [8, 7], [9, 7],
#   [7, 8], [8, 8], [9, 8],
#   [7, 9], [8, 9], [9, 9],
# ], dtype=float)
*/