The present study describes the control characteristics of the gas temperature and velocity fields of a RF induction argon thermal plasma by injecting cold helium gas axially at atmospheric pressure. The flow and the gas temperature fields in the RF induction mixed gas plasma are obtained by solving the axisymmetric turbulent 2D MHD equations and the energy transport equation coupled with 2D Maxwell's equations. The mixing rate of a secondary injected gas is also calculated using the species conservation equation. It is examined how the thermofluid and diffusion characteristics of a RF induction plasma are influenced by the input power and the positions of injection of secondary gas and swirling. The calculated gas temperature shows good agreement with the previously obtained experimental data.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)