As shown in the EM plunger example (www.comsol.com/model/electromagnetic-plunger-36671), Lorentz forces on translating objects can be modeled in Comsol with moving mesh nodes. However, the plunger example is for a time-dependent study, and it seems that prescribed mesh velocity nodes cannot be employed in stationary studies.
The system I would like to model is very similar to Comsol's homopolar generator example, except that the spinning disk in question has a constant translational velocity. Is it possible to model a magnetic field + constant linear velocity with a Lorentz node in a stationary study? The Lorentz node certainly accepts constant linear terms, but the documentation for Lorentz nodes suggests that such a simulation may not produce physically valid results. That is, one can simulate a linear+rotational velocity in a Lorentz node, but is the result right?
The system I would like to model is very similar to Comsol's homopolar generator example, except that the spinning disk in question has a constant translational velocity. Is it possible to model a magnetic field + constant linear velocity with a Lorentz node in a stationary study? The Lorentz node certainly accepts constant linear terms, but the documentation for Lorentz nodes suggests that such a simulation may not produce physically valid results. That is, one can simulate a linear+rotational velocity in a Lorentz node, but is the result right?