Negative Surface Discharge at Gas–Solid Interface

Application ID: 129251


This model simulates a negative dielectric barrier discharge under a point-to-plate electrode configuration. Two solid dielectric layers are inserted into the air gap. A negative voltage of 2.5 kV is applied to the cathode electrode, initiating a corona streamer that propagates and generates a current pulse. The resulting negative charge carriers accumulate at the gas–solid interface, altering the electric field. Ultimately, a stable negative surface discharge is formed. The simulated discharge current and surface charge distribution at the gas–solid interface show excellent agreement with experimental results.

This model example illustrates applications of this type that would nominally be built using the following products: