A simplified formulation of wire-plate corona discharge in air: Application to the ion wind simulation
| Autor: | K. Yanallah, M. R. Bouazza, Junhong Chen, Francisco Pontiga |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science 02 engineering and technology Mechanics Plasma Electron 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Charged particle Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion Ion wind Physics::Plasma Physics Electric field Physics::Space Physics 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Electrical and Electronic Engineering 0210 nano-technology Corona discharge Biotechnology Voltage |
| Zdroj: | Journal of Electrostatics. 92:54-65 |
| ISSN: | 0304-3886 |
| DOI: | 10.1016/j.elstat.2018.02.001 |
| Popis: | The spatial distribution of charged particles (electrons, negative ions and positive ions) and electric field have been evaluated using a semi-analytical approach of the positive and negative corona discharge for a wire-to-plate electrode system. Thus, approximate formulas useful for the characterization and control of corona discharge devices are provided, which helps to significantly reduce computational costs. Based on the obtained results, the electro-hydrodynamic (EHD) force generated by the corona discharge has been determined, and it has been used in the Navier-Stokes equations to compute the spatial distribution of the gas velocity. As a result, the influence of the corona plasma region in the flow pattern, particularly in the vicinity of the corona electrode, has been brought to light, which helps to understand the different flow velocities observed in positive and negative coronas. Moreover, the influence of voltage, wire radius, and inter-electrode separation on the electric wind velocity has been investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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