{
  "heat_W": 300,
  "flow_L_min": 1,
  "coolant": "water",
  "inlet_C": 25,
  "initial_C": 25,
  "duration_s": 3600,
  "thermal_dt_s": 30,
  "output_interval_s": 30,
  "battery_density_kg_m3": 1985.023977659002,
  "battery_cp_J_kgK": 1000,
  "battery_conductivity_W_mK": [
    20,
    20,
    1
  ],
  "battery_heat_source_W_m3": 26824.64834674327,
  "inlet_area_m2": 2.7761804617000385e-05,
  "outlet_area_m2": 2.7761804617000463e-05,
  "inlet_velocity_m_s": 0.6003452187852575,
  "inlet_profile": "Parabolic circular-pipe profile normalized by exact FE surface integral",
  "inlet_peak_velocity_m_s": 1.240289310505637,
  "water_density_kg_m3": 997,
  "water_cp_J_kgK": 4180,
  "water_k_W_mK": 0.6,
  "water_viscosity_Pa_s": 0.00089,
  "flow_model": "steady incompressible laminar Navier-Stokes screening",
  "thermal_model": "Transient 3D conduction plus advection with fixed RT0 mass-conservative velocity recovered from computed Elmer flow",
  "thermal_form": "Temperature rise T - inlet T; no reaction correction; native stabilized transport with RT0 element wind",
  "external_boundary": "adiabatic",
  "contacts": "perfect bonding with explicit 0.5 mm TIM",
  "buoyancy": false,
  "material_properties": "constant illustrative assumptions",
  "channel_Re": 2872.3710746182655,
  "hose_Re": 3961.9844759705293,
  "validation_scope": "illustrative engineering screening; no experimental validation"
}