Electric Currents (ec)
Stationary electric currents in conductors. Elmer StatCurrentSolver.
Category |
AC/DC › Electric Fields and Currents |
Name (tag) |
|
Space dimensions |
3D, 2D, 2D axisymmetric |
Studies |
Stationary, Time Dependent |
Dependent variables |
|
Default features |
\(-\nabla\cdot(\sigma\nabla V) = Q_{j,v}\)
Material properties used: Electrical conductivity (σ).
Interface settings
| Setting | Symbol | Unit | Default | Choices / type |
|---|---|---|---|---|
Discretization |
||||
Element order |
Quadratic |
Linear, Quadratic |
||
Elmer Solver |
||||
Additional Elmer solver keywords |
Text (multi-line) |
|||
Domain features
Current Conservation
Selection: Domains (all by default) · Physics ribbon › Domains, or right-click the interface in the Model Builder
\(\nabla\cdot\mathbf{J} = Q_{j,v},\quad \mathbf{J}=\sigma\mathbf{E},\quad \mathbf{E}=-\nabla V\)
| Setting | Symbol | Unit | Default | Choices / type |
|---|---|---|---|---|
Conduction Current |
||||
Electrical conductivity |
σ |
From material |
From material, User defined |
|
sigma |
σ |
|
|
Expression |
Boundary features
Ground
Selection: Boundaries · Physics ribbon › Boundaries, or right-click the interface in the Model Builder
\(V = 0\)
No settings.
Electric Potential
Selection: Boundaries · Physics ribbon › Boundaries, or right-click the interface in the Model Builder
\(V = V_0\)
| Setting | Symbol | Unit | Default | Choices / type |
|---|---|---|---|---|
Electric Potential |
||||
Electric potential |
V₀ |
|
|
Expression |