News

Nanosecond Pulsed Dielectric Barrier Discharge in Air

October 15th, 2017

Dielectric Barrier Discharges (DBD) are stable discharges capable of generating reactive non-equilibrium plasmas at high pressures.  Operation of these discharges at atmospheric pressure is particularly attractive for a number of applications including vacuum-chamber free materials processing, chemical processing of gas streams, and plasma actuators for aerodynamic flow control.  In non-ideal gases such as air, DBD’s produce large volume plasmas through the formation of a multitude of thin streamer channels that can fill the available space […]


DC Non-Transferred Plasma Torch

October 1st, 2017 plasma-torch-simulation-vizglow

VizSpark is used to model a non-transferred direct current plasma torch in pure argon gas assuming axi-symmetry along the central axis.  A steady state thermal plasma with temperatures from 15-20,000 Kelvin forms a supersonic, under expanded jet in the ambient region with visible Mach diamonds. Plasma torches are devices that produce a steady thermal plasma jet.  There are many applications for plasma torches including arc cutting, wielding, plasma spraying and waste treatment. A plasma torch […]