COMSOL Multiphysics simulates coupled physics phenomena — heat, electromagnetics, acoustics, structural mechanics and fluid flow — in one environment.
| Version | Size | Status |
|---|---|---|
| 6.3 | ~2 GB | Stable — official channel |
Register at comsol.com and request a trial license (typically 2 weeks, full features). Universities can ask about classroom licenses.
No — it is commercial, priced per module. Only the trial and teaching licenses are free.
RAM matters most: 8 GB minimum, 32-64 GB for complex multiphysics. More CPU cores speed up solving; any OpenGL GPU works.
COMSOL wins for equation-level flexibility in tightly coupled multiphysics; ANSYS has broader industrial modules and ecosystem.
Coarsen the mesh, exploit symmetry, switch from direct to iterative solvers, or add RAM on a 64-bit OS.
The built-in Application Library has 1000+ worked examples; the official video center covers heat transfer and structural basics.
| ANSYS | Broad industrial simulation suite |
|---|---|
| SimScale | Cloud-based FEA/CFD |
| Elmer FEM | Open-source multiphysics |
| FEniCS | Scriptable finite elements |
License: Commercial · Trial
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