Equation: Electrostatic

In one sentence: Elmer equation for electric potential and field — solves the Laplace/Poisson equation ∇·(ε∇V) = −ρ_f.

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Overview

Workbench: FEM
Menu: FEM → Solve → Elmer Equations → Electrostatic

Solves the Laplace/Poisson equation for the electric potential, then derives the electric field E = −∇V.

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Required

• BCs: Electrostatic Potential on conductors
• Material: Dielectric permittivity (relative permittivity ε_r)

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Use cases

Capacitor fields, insulation analysis, electrostatic actuators, electrode field mapping.

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See also

• Constraint: Electrostatic Potential
• Equation: Static Current — DC conduction current
• Solver Elmer — must be added first
• FEM Workbench — workbench overview