🪨 Porous Media Convection (Darcy-Forchheimer)

Compute convective heat transfer in saturated porous media: porous Nusselt number, Darcy-Forchheimer non-linear pressure drop, filtration pumping power, and porous Rayleigh Ra_K.

⚡ Fortran 90 Engine Double Precision (IEEE 754) ✓ ISO / ASME Validated
📊 Solver Telemetry ● ACTIVE
👁️ Consultations 37
⚡ Calculs faits 30
💾 Téléchargements 356 📦 Code Fortran 10.8 KB
📅 Mise en service Jun 2026
⏱️ Latence < 1 ms
⚡ Outils & Rapports :
💾 Télécharger Fortran 90

🪨 Saturated Porous Matrix & Interstitial Seepage Flow

Real-time visual simulation of fluid filtration through packed grains, Darcy pressure drop & thermal dispersion

📝 Configuration & Presets

♨️ Geothermal Aquifer 🧪 Catalytic Packed Bed 🧽 Metal Foam Heat Sink 🧱 Wall Fibrous Insulation
📐 Bed Geometry & Porous Structure
1 Darcy ≈ 9.87×10⁻¹³ m²
⚡ Flow Velocity & Temperatures
🧪 Solid & Fluid Thermal Properties
Darcy-Forchheimer Convection Formulation:
• Effective Conductivity: ke = φ kf + (1 − φ) ks
• Pressure Drop: ΔP = [ (μ/K) UD + ρ (CF/√K) UD² ] · H
• Porous Nusselt: Nu = √(1 + 0.318 PeK) | PeK = UD H / αe
• Porous Rayleigh: RaK = (ρ g β ΔT K H) / (μ αe)

📊 Porous Convection Results

Configure inputs and click Compute to view results.

📘 Calculation Methodology & Porous Convection Standards

Darcy-Forchheimer Model

Combines linear viscous drag (Darcy law) and non-linear quadratic form drag (Forchheimer inertial term):

∇P = − (μ/K) UD − ρ (CF/√K) UD²

Effective Thermal Conductivity

Represents the parallel/series mixture volume average of solid matrix and interstitial saturated fluid ($k_e = \phi k_f + (1-\phi) k_s$).

Key Engineering Assumptions

  • Homogeneous, isotropic porous matrix.
  • Local thermal equilibrium between fluid and solid phases ($T_f = T_s$).
  • Laminar and transitional filtration velocities ($Re_K = \frac{U_D \sqrt{K}}{\nu} < 10$).