{
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        "length_m": 167.33520000000001,
        "diameter_m": 0.2031986538
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    ],
    "valves": [
      {
        "id": "VALVE-173",
        "type": "TCV",
        "from": "JUNCTION-111",
        "to": "JUNCTION-112",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-174",
        "type": "TCV",
        "from": "JUNCTION-113",
        "to": "JUNCTION-114",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-175",
        "type": "TCV",
        "from": "JUNCTION-115",
        "to": "JUNCTION-116",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-176",
        "type": "TCV",
        "from": "JUNCTION-117",
        "to": "JUNCTION-118",
        "setting": "0.2000"
      },
      {
        "id": "VALVE-177",
        "type": "TCV",
        "from": "JUNCTION-119",
        "to": "JUNCTION-120",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-178",
        "type": "TCV",
        "from": "JUNCTION-121",
        "to": "JUNCTION-122",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-179",
        "type": "TCV",
        "from": "JUNCTION-123",
        "to": "JUNCTION-124",
        "setting": "0.2000000"
      },
      {
        "id": "VALVE-180",
        "type": "TCV",
        "from": "JUNCTION-125",
        "to": "JUNCTION-126",
        "setting": "0.20000"
      }
    ],
    "pumps": [
      {
        "id": "PUMP-170",
        "type": "pump",
        "from": "JUNCTION-105",
        "to": "JUNCTION-106",
        "setting": "HEAD CURVE-1"
      },
      {
        "id": "PUMP-172",
        "type": "pump",
        "from": "JUNCTION-109",
        "to": "JUNCTION-110",
        "setting": "HEAD CURVE-1"
      }
    ]
  },
  "scenarios": [
    {
      "id": "valve_closure_sweep",
      "family": "Valve closure stability sweep",
      "target": "VALVE-173",
      "summary": "Sweep closure time and curve shape to study pressure peaks, damping, and settling.",
      "outputs": [
        "max_pressure",
        "min_pressure",
        "settling_time",
        "dominant_frequency",
        "damping_ratio"
      ]
    },
    {
      "id": "pump_trip_rampdown",
      "family": "Pump trip / ramp-down dynamics",
      "target": "PUMP-170",
      "summary": "Ramp pump speed down and inspect reverse flow, downsurge, upsurge, and decay.",
      "outputs": [
        "reverse_flow",
        "pressure_downsurge",
        "pressure_upsurge",
        "oscillation_decay"
      ]
    },
    {
      "id": "burst_leak_sensitivity",
      "family": "Burst/leak disturbance",
      "target": "JUNCTION-20",
      "summary": "Vary leak size and development time at TSNet documented disturbance nodes.",
      "outputs": [
        "pressure_drop",
        "recovery_time",
        "dominant_frequency",
        "critical_node_ranking"
      ]
    },
    {
      "id": "demand_pulse",
      "family": "Demand pulse response",
      "target": "JUNCTION-20",
      "summary": "Use sudden demand variation as an online-friendly disturbance template.",
      "outputs": [
        "event_delay",
        "settling_time",
        "overshoot",
        "dominant_frequency"
      ]
    }
  ]
}