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 […]
The VizSpark software is used to perform a 2-D simulation of a model spark plug channel with cross-flow. Coupling between arc physics and conjugate heat transfer to the electrode was performed. The ability to predict spark restrike events was also demonstrated. Furthermore, an estimate of electrode ablation is also made. The spark plug has been a reliable source of ignition for well over 100 years. The ignition source plays a pivotal role in the efficiency […]
Esgee Technologies Inc. presents “Simulations of Spark-Plug Transient Plasma Breakdown in Automotive Internal Combustion Engines” at SAE World Congress on April 6th, 2017. This work investigates the dynamics of spark breakdown and quantifies its effect on electrode damage for different electrode geometries. Ion bombardment and sputtering on the cathode surface are quantified. Quantifying this behavior is critical to understanding (and ultimately improving) spark plug reliability and electrode lifetime. For information contact us at email@example.com.