Electrostatic Poisson equation

Understand the Electrostatic Poisson equation relationship used by Equation contract.

Where to find it

Equation contract → equations

How to use it

Compare the terms, signs and units with your intended physical assumptions before choosing model inputs.

Result

Equation: -\nabla\!\cdot\!\left(\boldsymbol{\epsilon}\nabla V\right)=\rho_q.

Troubleshooting

The equation describes the model assumptions; it is not a separate editable boundary condition. Check the parent physics page for setup and limitations.