News

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 […]


EM Wave Propagation in L-bent Waveguide

September 1st, 2017

This application note illustrates the transient development of microwave field in an air-filled waveguide with an L-bend geometric feature.   The Time-Domain Electromagnetic Wave Solver Module of the VizEM Electromagnetics Modeling Software Package developed by Esgee Technologies Inc. is used for this problem. The 2D planar waveguide geometry and the computational mesh used for the simulations of this problem are shown in Figure 1.  The waveguide is 100 cm long in the horizontal direction (x-direction) and […]


Microwave Reactor in the Frequency Domain

May 1st, 2017 3D Microwave Plasma MWP Simulation in VizGlow

This example application simulates a steady microwave field in a three-dimensional plasma reactor using in semiconductor materials processing.  The Frequency-Domain Electromagnetic Wave Solver Module of the VizEM is used for this problem. The geometry for the simulation is shown in Figure 1 and comprises a cylindrical processing reactor with an air-filled waveguide port in the top center of the reactor.  The waveguide is rectangular in cross section and comprises an L-bend with a 45o mirror surface […]