🧊 2D Transient Conduction & Heisler Multi-D

Calculate 2D multidimensional transient heat conduction in rectangular billets: center core temperature (T0), corner surface temperature, Biot and Fourier numbers, and heat removed (Q/Qmax).

⚡ Fortran 90 Engine Double Precision (IEEE 754) ✓ ISO / ASME Validated

📊 Solver Telemetry ● ACTIVE

👁️ Consultations 22

⚡ Calculs faits 21

💾 Téléchargements 319 📦 Code Fortran 3.4 KB

📅 Mise en service Jun 2026

⏱️ Latence < 1 ms

🧊 2D Rectangular Billet Quenching & Isothermal Contour Field

Real-time visual simulation of internal heat diffusion migrating from center core to convective boundaries

📝 Configuration & Presets

🔩 Steel Billet Water Quench 🪟 Aluminum Extrusion Air Cool 🧱 Ceramic Furnace Lining 💻 Silicon CPU Die Surge

📐 Geometry (Half-Widths)

Half-Width L_x [mm]: Total 2Lx = 100 mm

Half-Height L_y [mm]: Total 2Ly = 160 mm

🧪 Material Physical Properties

Thermal Conductivity k [W/(m·K)]:

Density ρ [kg/m³]:

Specific Heat c_p [J/(kg·K)]:

🌡️ Thermal Boundary Conditions

Initial Temp T_i [°C]:

Ambient / Quench T_∞ [°C]:

Convection Coeff h [W/(m²·K)]:

Quench Time t [seconds]:

2D Heisler Product Formulation:
• Dimensionless Temp: θ(x,y,t) = θ_x(x,t) · θ_y(y,t)
• Center Solution: θ₀ = [ C_x e^{−ζ_x² Fo_x} ] · [ C_y e^{−ζ_y² Fo_y} ]
• Transcendental Roots: ζ · tan(ζ) = Bi
• Heat Removed: Q / Q_max = 1 − θ₀ · (sin ζ_x sin ζ_y) / (ζ_x ζ_y)

📊 Transient Conduction Results

Configure inputs and click Compute to view results.

📘 Calculation Methodology & Multidimensional Heisler Standards

Heisler Product Theorem

For multidimensional geometric solids (infinite rectangular bar), the dimensionless temperature is the direct product of 1D infinite slab analytical solutions:

                    θ(x,y,t) = θslab,x(x,t) × θslab,y(y,t)
                

Spatial Temperature Distribution

The corner cools first due to simultaneous two-sided convective exposure ($\theta_{corner} = \theta_{surf,x} \cdot \theta_{surf,y}$), while the core retains thermal energy.

Key Engineering Assumptions

Homogeneous, isotropic solid with constant thermal diffusivity $\alpha$.
Uniform initial temperature $T_i$ and uniform ambient quench convection $h$.
Fourier numbers $Fo > 0.2$ for high-accuracy single-term series representation.

ThermoFluidCalc Engineering Report