Example15 Uneven Electric Field

General

• A stylus is placed over a plate. The voltage across them generates uneven electric field.
   

• The electric field and the equipotential map are solved.
   

• Unless specified in the list below, the default conditions will be applied.
   

Analysis Space

Analysis Conditions

Select “Static analysis” as the potential is static.

Create the ambient air manually. Deselect the automatic creation.

Model

A round-bottomed cylinder is placed inside the air cube.

The flat bottom of the cylinder is set to 1[V] and the bottom face of the air is set to 0[V].

Body Attributes and Materials

* Available from the Material DB

Boundary Conditions

To set Outer Boundary Condition, go to the [Model] tab
 

and click [Outer Boundary Condition] .

Results

The vectors of the electric field are shown below.

The isosurface contour of the electric field is shown below.

The electric field is plotted along the Z axis below.

It is uneven around the head of the electrode.