If you are a student, you likely don't need to find a "free license" on your own.
The "Free" version requires your projects to be public , meaning everyone can see your data. Final Verdict comsol multiphysics free license
COMSOL Multiphysics is known for its ability to model coupled physics phenomena—like fluid flow, heat transfer, and structural mechanics—all in one interface. Because it is high-end enterprise software, there is no "forever free" version for general use. However, there are several ways to get temporary or specialized access. 1. The COMSOL Free Trial If you are a student, you likely don't