Parallel 2-D simulation of atmospheric-pressure plasma jet accelerated by a temporal multi-scale model

For low-pressure gas discharges, fluid modeling without considering the fluid dynamics is often considered to be valid. However, as the pressure rises, fluid dynamics becomes important in affecting the gas discharges. Therefore, a thorough simulation of atmospheric-pressure plasma jets (APPJ) needs to consider two parts, the gas flow model (GFM) and the plasma fluid model (PFM). There have been very few studies in the literature which have focused on this regard.^1-4 The complete simulation of APPJ coupling the fluid dynamics and gas discharge often takes from weeks up to months of runtime. Specifically speaking, the part of PFM takes generally more than 90% of the overall runtime for the simulation of APPJ. In other word, the bottleneck for speeding up the APPJ simulation is to shorten the runtime consumed by the part of PFM.