Numerical simulation of downstream kinetics of an atmospheric pressure nitrogen plasma jet using laminar, modified laminar, and turbulent models
Journal
Plasma Chemistry and Plasma Processing
Journal Volume
33
Journal Issue
6
Pages
1121-1135
Date Issued
2013
Author(s)
Abstract
We present numerical simulation of the nitrogen atmospheric pressure plasma jet (APPJ) using three fluid models - namely, laminar model, modified laminar model, and turbulent (k-£`) model - coupled with gas-phase reaction kinetics. The spatial profiles of the light emission intensities, gas temperature, and NO density predicted by the turbulent model show a better agreement with the experimental observations, compared with laminar and modified laminar models. We have demonstrated that the turbulent model shows more oxygen entrainment, more mixing with the ambient air, and a lower axial velocity at the downstream. These allow the turbulent model to more precisely capture the APPJ characteristics than the laminar and modified laminar models do. ? 2013 Springer Science+Business Media New York.
Subjects
Atmospheric pressure plasmaNitrogen plasmaNumerical simulationTurbulent and laminar jet
Type
journal article