{
  "case": {
    "case_id": "A-Q40-F12-quadratic",
    "design_fan_count": 12,
    "active_indices": [
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9,
      10,
      11
    ],
    "scenario": "maximum_heat",
    "curve": "quadratic",
    "power_per_cell_w": 40.0,
    "ambient_inlet_c": 25.0,
    "external_resistance_pa_per_m3_s2": 800.0,
    "duration_s": 18000.0,
    "time_step_s": 30.0,
    "output_interval_s": 1200.0,
    "mesh": "base",
    "nusselt_multiplier": 1.0,
    "conductivity_axis": null,
    "conductivity_multiplier": 1.0,
    "interface_resistance_multiplier": 1.0,
    "interface_total_resistance_m2k_w": null,
    "fin_joint_resistance_m2k_w": 0.0,
    "heat_schedule": null,
    "steady_eligible": true,
    "scenario_label_zh": "25℃连续最大热应力",
    "heat_source_label_zh": "连续最大热应力",
    "layout_key": "A",
    "layout_label_zh": "A：四象限嵌套L形＋水力平衡",
    "fin_height_multiplier": 1.0,
    "steady_only": false
  },
  "metrics": {
    "case_id": "A-Q40-F12-quadratic",
    "design_fan_count": 12,
    "active_fan_count": 12,
    "scenario": "maximum_heat",
    "fan_curve": "quadratic",
    "solver_status": "success",
    "maximum_temperature_c": 48.56213362633322,
    "cell_mean_spread_k": 2.356068464358181,
    "maximum_within_cell_spread_k": 10.697749520475135,
    "channel_flow_cv": 1.7635732025454945e-16,
    "maximum_fan_pressure_pa": 325.84095502183163,
    "energy_residual_fraction": 0.00016615023965418192,
    "notes": [],
    "maximum_temperature_time_s": 18000.0,
    "final_maximum_temperature_c": 48.56213362633322,
    "layout_key": "A"
  },
  "passes_limits": true,
  "model_class": "分层守恒热流网络；不是完整三维 Navier-Stokes CFD",
  "heat_source_boundary": {
    "rated_w_per_cell": 40.0,
    "maximum_w_per_cell": 40.0,
    "segments": [
      {
        "start_s": 0.0,
        "end_s": 18000.0,
        "power_per_cell_w": 40.0
      }
    ],
    "total_input_energy_j": 37440000.0
  },
  "boundary_conditions": {
    "fan_suction_temperature_c": 25.0,
    "upper_chamber_external_heat_flux_w_m2": 0.0,
    "air_contacts_cells": false
  },
  "network": {
    "channel_count": 96,
    "total_flow_m3_s": 0.47214783444600866,
    "channel_flow_cv": 1.7635732025454945e-16,
    "maximum_fan_pressure_pa": 325.84095502183163,
    "residual_norm_m3_s": 0.0,
    "active_indices": [
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9,
      10,
      11
    ],
    "pressure_loss_coefficients": {
      "inlet": 0.8,
      "turn": 1.2,
      "channel": 0.0,
      "outlet": 1.0
    },
    "pressure_drop_components_pa": {
      "friction": {
        "minimum": 108.67729591413705,
        "mean": 108.67729591413702,
        "maximum": 108.67729591413705
      },
      "inlet": {
        "minimum": 41.36199290475715,
        "mean": 41.361992904757145,
        "maximum": 41.36199290475715
      },
      "turn": {
        "minimum": 62.04298935713572,
        "mean": 62.042989357135724,
        "maximum": 62.04298935713572
      },
      "channel": {
        "minimum": 0.0,
        "mean": 0.0,
        "maximum": 0.0
      },
      "outlet": {
        "minimum": 51.702491130946434,
        "mean": 51.702491130946434,
        "maximum": 51.702491130946434
      },
      "external": {
        "minimum": 11.146178878602777,
        "mean": 11.14617887860278,
        "maximum": 11.146178878602777
      },
      "total": {
        "minimum": 274.9309481855791,
        "mean": 274.93094818557904,
        "maximum": 274.9309481855791
      }
    }
  },
  "numerics": {
    "mesh": "base",
    "maximum_solid_energy_residual_fraction": 0.00016615023965418192,
    "maximum_coupling_iterations": 3
  },
  "input_sha256": "c261bb04898f4f3249130db3c8236ffd63a5723c316bfb9f74b68c2b534d9a4d",
  "input_manifest": {
    "base_input_sha256": "e278eb465ecb27b4b40d1b411a2a0db76a9d95e5e427558e0bac9ac37f2d77d3",
    "case_definition": {
      "active_indices": [
        0,
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11
      ],
      "ambient_inlet_c": 25.0,
      "case_id": "A-Q40-F12-quadratic",
      "conductivity_axis": null,
      "conductivity_multiplier": 1.0,
      "curve": "quadratic",
      "design_fan_count": 12,
      "duration_s": 18000.0,
      "external_resistance_pa_per_m3_s2": 800.0,
      "fin_height_multiplier": 1.0,
      "fin_joint_resistance_m2k_w": 0.0,
      "heat_schedule": null,
      "heat_source_label_zh": "连续最大热应力",
      "interface_resistance_multiplier": 1.0,
      "interface_total_resistance_m2k_w": null,
      "layout_key": "A",
      "layout_label_zh": "A：四象限嵌套L形＋水力平衡",
      "mesh": "base",
      "nusselt_multiplier": 1.0,
      "output_interval_s": 1200.0,
      "power_per_cell_w": 40.0,
      "scenario": "maximum_heat",
      "scenario_label_zh": "25℃连续最大热应力",
      "steady_eligible": true,
      "steady_only": false,
      "time_step_s": 30.0
    },
    "resolved_heat_schedule": {
      "rated_power_per_cell_w": 40.0,
      "segments": [
        {
          "end_s": 18000.0,
          "power_per_cell_w": 40.0,
          "start_s": 0.0
        }
      ]
    },
    "schema_version": 1
  },
  "temperatures_npz_sha256": "5b716af20544f46a16973afd2bf7d954f3ead221632fcd0eea2eb2619aa28d38"
}