Numerical Simulation of Fluid Flow in Planer Dielectric Barrier Discharge Reactor for Helium

In this research, the effect of plasma induced by electric field over the incompressible fluid in dielectric barrier discharge reactors has been simulated numerically. To simulate dielectric barrier discharge, plasma fluid method is used. Helium is used as the background gas. Five species and nine Reactions for this gas are applied to the model. For these simulations, conservation equations for each species and the Poisson equation for the electric field should be applied. Then, the calculated electro-hydrodynamic force is applied as the body force to the fluid flow equations. This simulation determined the various density species of Helium gas. The results showed that the chemical reactions taken in to account, give lower generation rate for positive charge species. Hence, charge density drops especially in the positive electrode relative to the negative one. Therefore, plasma produced near the negative electrode affects the fluid flow more than the positive one. However, considering charge density generated and arrangement of electrodes, the overall influence on the fluid flow will be little.