18.1.2. Electric Potential Equation

When the electric potential solver is enabled, Ansys Fluent solves the following electric potential equation:

(18–1)

where
	= electric potential
	= electric conductivity in a solid zone or ionic conductivity in a fluid zone
	= source term

Note that Equation 18–1 does not have a transient term. To solve Equation 18–1, either electric potential or electric current needs to be specified at all external boundaries as described in Setting Up the Electric Potential Model in the Fluent User's Guide.