Gauss law

Understand the Gauss law relationship used by Piezoelectricity.

Where to find it

Piezoelectricity → equations

How to use it

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

Result

Equation: \nabla\!\cdot\mathbf D=\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.