NAFEMS T4
Heat transferPASS · 0.31%Two-dimensional steady-state heat conduction with convective boundary conditions — temperature check at an edge point, solved as an exact 3D extrusion equivalent.
- Tolerance:
- 5%
Problem statement
- Geometry
- Rectangle 0.6 m x 1.0 m (solved as a thin 3D extrusion in z with both z-faces insulated, which reproduces the 2D field exactly).
- Material
- Thermal conductivity k = 52 W/(m*C).
- Boundary conditions
- Edge AB (y = 0) held at 100 C; edge AD (x = 0) insulated; edges BC (x = 0.6) and CD (y = 1.0) convect with h = 750 W/(m^2*C) to a 0 C ambient.
- Measured quantity
- Temperature at point E (0.6, 0.2) on edge BC — reference value 18.3 C.
Results comparison
| Reference value | 18.3 °C (TNSB-1990COMSOL даёт 18.25 °C) |
| Our result | 18.251 °C (96×160), 18.244 °C (48×80) |
| Deviation | 0.31% |
| Tolerance | 5% |
| Status | PASS · 0.31% |
| Element family | Solid element |
| Mesh details | hex8-экструзия 2D-постановки (z-грани изолированы), сетки 24×40 → 48×80 → 96×160: T(E) = 18.214 → 18.244 → 18.251 °C; (Dirichlet + Robin/конвекция), единицы СИ |
Updated: 2026-08-10 · WebCAE solver