Introduction
Dielectric barrier discharge (DBD) is known as one of the most efficient ways to generate non-thermal plasma in atmospheric pressure air. The de facto standard for atmospheric pressure nonthermal plasma models is to describe the electron and ion dynamics with a drift diffusion approach. This allows one to easily calculate the volume charge density.
Description of The Process
In this project, computational fluid model was introduced for the numerical simulation of atmospheric pressure dielectric barrier discharge plasmas. Boltzmann’s relation was used to calculate the spatial distribution of electrons as a function of electrostatic potential and ion charge density.
Also, a robust algorithm for solving the nonlinear electrostatic Poisson problem arising from the electron Boltzmann approach under AC electric fields. It was created based on iterative calculations by maintaining the reference electric potential charge and electron density. A volumetric reactor in dry air was simulated and the results obtained from the proposed method were compared with the results obtained when using the drift diffusion method for all charged species, including electrons.
Conclusion
In this work, we presented a computational fluid model. which was dedicated to describing the dynamics of neutral and charged species in non-thermal plasmas at atmospheric pressure. We focused on developing a technique that allows a significant reduction of the computational burden of these types of simulations.
The proposed method is based on avoiding the direct temporal integration of electron fluxes by relating the electron number density distribution and the local electric potential through the Boltzmann relation. While this approach is well established for low-pressure, open-boundary problems, for example, space plasma propulsion.
Simulation of Non-Thermal Plasma With Drift Diffusion Model
In this project, Boltzmann’s electron drift model has been modeled in MATLAB software to simulate atmospheric pressure non-thermal plasma. To buy the project or get more information about it, proceed through the link below.