es.poisson

Understand the es.poisson 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: dot(grad(test(es.V)), permittivity*grad(es.V)) - test(es.V)*chargeDensity.

Troubleshooting

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