ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Electromagnetic scattering of charged particles in a strong wind-blown sand electric field |
Xingcai Li(李兴财)1,2, Xuan Gao(高璇)1,2, Juan Wang(王娟)3 |
1 School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China;
2 Ningxia Key Laboratory of Intelligent Sensing for the Desert Information, Ningxia University, Yinchuan 750021, China;
3 Xinhua College, Ningxia University, Yinchuan 750021, China |
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Abstract Some field experimental results have shown that the moving sands or dust aerosols in nature are usually electrified, and those charged particles also produce a strong electric field in air, which is named as wind-blown sand electric field. Some scholars have pointed out that the net charge on the particle significantly enhances its electromagnetic (EM) extinction properties, but up to now, there is no conclusive research on the effect of the environmental electric field. Based on the extended Mie theory, the effect of the electric field in a sandstorm on the EM attenuation properties of the charged larger dust particle is studied. The numerical results indicate that the environmental electric field also has a great influence on the particle's optical properties, and the stronger the electric field, the bigger the effect. In addition, the charged angle, the charge density, and the particle radius all have a specific impact on the charged particle's optical properties.
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Received: 22 June 2018
Revised: 19 October 2018
Accepted manuscript online:
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PACS:
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42.68.Ay
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(Propagation, transmission, attenuation, and radiative transfer)
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42.68.Ge
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(Effects of clouds and water; ice crystal phenomena)
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42.68.Mj
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(Scattering, polarization)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11562017 and 11302111), the CAS “Light of West China” Program (Grant No. XAB2017AW03), adn the Major Innovation Projects for Building First-class Universities in China's Western Region (Grant No. ZKZD2017006). |
Corresponding Authors:
Xingcai Li, Juan Wang
E-mail: nxulixc2011@nxu.edu.cn;jjxn1983@gmail.com
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Cite this article:
Xingcai Li(李兴财), Xuan Gao(高璇), Juan Wang(王娟) Electromagnetic scattering of charged particles in a strong wind-blown sand electric field 2019 Chin. Phys. B 28 034208
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