Default Boundary Conditions for a 2D Electrostatic Solver

These boundary conditions are automatically defined for an electrostatic model:

• Natural boundaries are assigned to the interfaces between objects. The normal component of D changes by the amount of surface charge density, tangent component of E is continuous.
• Neumann boundaries are assigned to the outside edges of the problem region. E is tangential to the boundary. Flux cannot cross a Neumann boundary.

To leave a surface set to its default boundary condition, do nothing. Deleted boundary conditions and excitations automatically revert to the default boundary conditions.