The Velocity (Lorentz term) node adds velocity
v. The external current is equal to
σv × B. It also only valid when solving for both the electric potential and the magnetic vector potential using
The Magnetic and Electric Fields Interface.
User defined is selected by default. Enter the components for the
Velocity vector
v (SI unit: m/s) or, if present, select any velocity field defined in the model. For example, using the velocity field is useful when coupling to the velocity field of a fluid for a magnetohydrodynamic model.