Modelling of a nonequilibrium spherical electric discharge under higher modes of incident microwaves

Date

2005-05-02

Author

Rafatov, İsmail
Çakır, Serhat

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

127
views

0
downloads

The work deals with the modelling of a nonequilibrium spherical microwave discharge. An effect of the higher modes of the incident electromagnetic waves on the properties of the discharge plasma is investigated. Numerical experiments are carried out for the discharge in an argon at atmospheric pressure. Results are presented for the characteristics of the discharge plasma against the external parameters (the mode, frequency and power of the applied electromagnetic field and the size of the discharge chamber).

Subject Keywords

Plasma, Microwave discharge, Modelling

URI

https://hdl.handle.net/11511/32638

Journal

PHYSICS LETTERS A

DOI

https://doi.org/10.1016/j.physleta.2005.03.001

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Numerical investigation of a dc glow discharge in an argon gas: two-component plasma model Kemaneci, Efe Hasan; Rafatov, İsmail; Department of Physics (2009) This thesis deals with a one and two dimensional numerical modeling of a low-pressure DC glow discharge in argon gas. We develop two-component fluid model which uses the diffusion-drift theory for the gas discharge plasma and consists of continuity equations for electrons and ions, as well as Poisson equation for electric field. Numerical method is based on the control volume technique. Calculations are carried out in MATLAB environment. Computed results are compared with the classic theory of glow discharg...
Self-consistent treatment of gas heating in modeling of a coaxial DBD in atmospheric pressure CO2 Zhou, Chen; Yuan, Chengxun; Kudryavtsev, Anatoly; Yasar Katircioglu, T.; Rafatov, İsmail; Yao, Jingfeng (2023-01-01) This work is devoted to the numerical study of characteristics of dielectric barrier discharge maintained in a coaxial reactor in atmospheric pressure CO2. The numerical model is based on the drift-diffusion theory of gas discharges, and takes into account the gas heating in a self-consistent manner. The effect of incorporating gas heating into the discharge properties, specifically, on CO2 decomposition, is investigated for wide range of amplitude and frequency of the applied voltage. Calculations revealed...
Investigation of structural, electronic, anisotropic elastic, and lattice dynamical properties of MAX phases borides: An Ab-initio study on hypothetical &ITM(2)AB&IT (M = &ITTi&IT, &ITZr&IT, & A = &ITAl&IT, &ITGa&IT, &ITIn&IT) compounds SÜRÜCÜ, GÖKHAN (2018-01-01) The structural, electronic, anisotropic elastic, and lattice dynamical properties of the M(2)AB (M = Ti, Zr, Hf; A = Al, Ga, In) compounds belong to the family of MAX phases have been investigated by accomplishing the first principles density functional theory (DFT) calculations with utilizing the generalized-gradient approximation (GGA). Structural parameters, formation enthalpies, and X-ray diffraction patterns have been calculated for all compounds. Electronic band structure and corresponding density of ...
Simulations on glow discharge: development and validation of one-dimensional kinetic model by particle in cell/monte carlo collision method Tiryaki, Özgecan; Çakır, Serhat; Department of Physics (2019) Numerical codes for glow discharge plasma simulations were developed by using Particle in Cell/Monte Carlo Collision (PIC/MCC) method. The model is one-dimensional in coordinate space and three-dimensional in velocity space (1d3v). A modification of Direct Simulation Monte Carlo (DSMC) method known as null-collision method was used for particle collisions. MPI and sub-cycling were used for speed up. The code was validated using benchmarks for capacitively coupled helium discharges and tested with three-dime...
Investigation of nonlinear oscillations in the gas discharge-semiconductor system: effect of different fluid modelling approaches Yeşil, Cihan; Rafatov, İsmail; Department of Physics (2018) The work deals with the study of nonlinear oscillations in a system, consisted of planar glow discharge layer, coupled to a high-ohmic semiconductor layer. The whole system is sandwiched between two planar electrodes, to which the DC voltage is applied. The discharge models are developed in Comsol Multiphysics (v5.2), and based on ﬂuid description of plasma, with drift-diﬀusion approximation for charged particle ﬂuxes. Numerical tests are carried out for the discharge in Nitrogen, with GaAs semiconductor la...

Citation Formats

İ. Rafatov and S. Çakır, “Modelling of a nonequilibrium spherical electric discharge under higher modes of incident microwaves,” PHYSICS LETTERS A, pp. 353–365, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32638.