Mechanics of Particle Motion in a Standing Wave Electric Curtain: A Numerical Study
Abstract
:1. Introduction
2. Numerical Model
2.1. Electric Field and Electric Potential Distribution
2.2. Motion-Governing Equations
- The particle keeps its initial charge during movement. There is no charge exchange between the particle and the conveyor surface;
- The resolution of the problem is two-dimensional space ();
- The simulation is executed for one single particle, neglecting mechanical and electrical interactions between particles;
- The electrodes are extremely thin, so their thickness is neglected, and there is no dielectric barrier;
- At the surface, an elastic collision condition with a restitution coefficient of one is considered. This means that when the particle hits the surface, its velocity along the normal axis is inverted: .
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameters | Values | Units |
---|---|---|
Amplitude of the applied voltage waveforms, | 1000 | V |
Lamda, 𝜆 | / | |
Particle radius, | 30 | µm |
Particle relative permittivity, | 3.4 | / |
Permittivity of the vacuum, | / | |
Dynamic viscosity of the air, | ||
Hamaker constant, (in the vacuum) | Of the order of | J |
Shortest distance between the particle and the substrate, | Of the order of | M |
Quadratic mean value of the surface roughness, | ≈3 | Nm |
Mean distance between the peaks of the asperities, | ≈20 | Nm |
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Bechkoura, H.; Zouzou, N.; Kachi, M. Mechanics of Particle Motion in a Standing Wave Electric Curtain: A Numerical Study. Atmosphere 2023, 14, 681. https://doi.org/10.3390/atmos14040681
Bechkoura H, Zouzou N, Kachi M. Mechanics of Particle Motion in a Standing Wave Electric Curtain: A Numerical Study. Atmosphere. 2023; 14(4):681. https://doi.org/10.3390/atmos14040681
Chicago/Turabian StyleBechkoura, Hana, Noureddine Zouzou, and Miloud Kachi. 2023. "Mechanics of Particle Motion in a Standing Wave Electric Curtain: A Numerical Study" Atmosphere 14, no. 4: 681. https://doi.org/10.3390/atmos14040681