Current flow in conductor with various cross-sections
Current distribution and current concentration in a conductor whose cross-section varies along the current path, reflecting the effect of non-uniform geometry.
Engineering Problem
How can current concentration be found in a conductor with a non-uniform cross-section?
Answer
Build a plane-parallel DC Conduction problem and evaluate the degree of current concentration from the computed field results.
Typical Applications
- Conductors with non-uniform cross-section
- Fuse elements
- Irregularly shaped busbar cross-sections
Simulation Problem
- Problem Type
- Plane-parallel DC Conduction
- Geometry
- Conductor thickness 1 mm, outer dimensions 121×293 mm, with a 71×50 mm rectangular notch in the middle.
- Given
- Conductor resistivity ρ = 0.0097784 Ω·m
- Top edge potential 10 V
- Bottom edge potential 0 V
- Task
- Determine the current distribution inside the conductor.
- Results
The current density distribution inside the conductor is obtained, showing clear current concentration on both sides of the notch.
