🔥 Hypersonic Aerodynamic Heating (Sutton-Graves)

Calculate hypersonic stagnation convective heat flux (kW/m²), radiative equilibrium wall temperature (Trad), and stagnation enthalpy using Sutton-Graves and US 1976 atmosphere.

⚡ Fortran 90 Engine Double Precision (IEEE 754) ✓ ISO / ASME Validated
📊 Solver Telemetry ● ACTIVE
👁️ Consultations 15
⚡ Calculs faits 14
💾 Téléchargements 337 📦 Code Fortran 4.4 KB
📅 Mise en service Jun 2026
⏱️ Latence < 1 ms
⚡ Outils & Rapports :
💾 Télécharger Fortran 90

🔥 Hypersonic Bow Shock Wave & Stagnation Point Plasma Sheath

Real-time visual simulation of detached bow shock, stagnation plasma layer & radiative thermal glow

📝 Configuration & Presets

🛰️ LEO Capsule (7.5 km/s) 🚀 Wave-Rider Glide (Mach 11) 🌕 Lunar Return (11 km/s) ✈️ Scramjet Cruise (Mach 7)
🚀 Trajectory & Velocity
US Standard Atmosphere (0–100 km)
📐 Thermal Protection & Geometry
Blunt nose: 0.5–1.5 m, Sharp leading edge: 0.02–0.2 m
Carbon-Phenolic / Ceramic TPS: ~0.85–0.90
Sutton-Graves Heating Formulations:
• Stagnation Flux: q̇₀ = kSG · √(ρ / Rn) · V³ [W/m²]
• Radiative Wall Temp: Trad = ( q̇₀ / (ε · σ) )1/4 [K]
• Total Enthalpy: h₀ = cp T + ½ V² [MJ/kg]
• Post-Shock Pressure: P₀₂ ≈ 0.92 · ρ · V² [kPa]

📊 Aerodynamic Heating Results

Configure inputs and click Compute to view results.

📘 Calculation Methodology & Hypersonic Aerothermodynamic Standards

Sutton-Graves Convective Model

Derived from boundary layer boundary solutions with high-temperature gas dissociation equilibrium. Convective heat flux scales inversely with the square root of nose radius $R_n$:

q̇₀ = 1.7415 × 10⁻⁴ · √(ρ / Rn) · V³

Radiative Surface Equilibrium

Assuming negligible interior conduction into the Thermal Protection System (TPS), wall temperature reaches radiative balance: $q_{conv} = \epsilon \sigma T_{rad}^4$.

Key Engineering Assumptions

  • 1976 US Standard Atmosphere piecewise thermodynamic equations.
  • Axisymmetric spherical / cylindrical blunt stagnation point.
  • Equilibrium laminar hypersonic boundary layer.