Deriving the Eddy Current Equation
The eddy current field solver uses the finite element method to compute A and F using these two relationships:
where
- A is the magnetic vector potential.
- F is the electric scalar potential.
- m is the magnetic permeability.
- w is the angular frequency at which all quantities are oscillating.
- s is the conductivity.
- e is the permittivity.
- IT is the total current flowing in conductors.
The following section shows how these equations are derived from Maxwell’s equations.