The steps needed to incorporate electrical heating in your simulation are listed below:
Define a nonisothermal sub-task to model the flow in your problem.
Define a separate sub-task for the calculation of the electrical potential.
Create a sub-task
Select the potential problem type.
Potential problem
When prompted, specify a name for the sub-task.
Specify the region where the electrical potential sub-task applies (that is, the domain for Equation 25–1).
Domain of the sub-task
Specify the temperature dependence of the electrical conductivity.
Material data
Select Electrical conductivity.
Electrical conductivity
Specify the electrical conductivity in one of the following ways:
-
Constant conductivity:
where 
is a constant that you provide. -
Linear conductivity:
where 
, 
, and 
are constants that you provide. -
Exponential conductivity:
, where 
, 
, 
, and 
are constants that you provide. Note that
this is a nonlinear temperature dependence, and may result
in convergence difficulties.
Define the potential boundary conditions on the boundary sets (or along intersections with sub-domains) that form the boundary of the domain of the potential sub-task.
Potential boundary conditions
Select the boundary for which you want to set potential conditions.
Click Modify.
Select the boundary condition type you want to impose. For each boundary, there are two or three possible conditions. By default, Ansys Polydata imposes an insulated condition on all boundaries.
Choose Potential imposed to specify the electric potential on the boundary.
Potential imposed
Select Constant to set a constant value.
Choose Insulated boundary to specify an insulated boundary.
Insulated boundary
No further inputs are required.
Choose Interface (available only for interfaces between sub-tasks) to guarantee continuity of the electrical potential and of the current across the interface.
Interface
No further inputs are required.