OverViz Blog

Esgee Technologies will present “Computational Modeling of Microwave Interactions with Self-consistent Plasma” at the 70th Annual Gaseous Electronics Conference in Pittsburgh, PA on Nov. 7th, 2017. This talk will address current challenges in computational modeling of microwave-sustained plasmas. Examples include discharges sustained by surface wave propagation (SWP) along plasma- dielectric interface (SPP) and discharged sustained by SWP along the plasma-sheath interface (MVP). These are important processes for the creation and sustenance of plasmas in industrial scale plasma reactors

Announcements
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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

Applications
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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

Applications
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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

Applications
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We are pleased to announce the release of OverViz Simulation Suite version 2.2. This includes the first release of VizGrain with full integration into the OverViz simulation framework, enabling macro-particle dynamics for hybrid plasma-fluid-electromagnetics simulations. Key new features include: Direct Simulation Monte Carlo (DSMC) particle modeling in VizGrain; dust particle and boundary surface changing; enhanced particle collision modeling; new robust, compressible flow solver in VizFlow applicable across wide range of Mach numbers; now support multiple

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