中国物理B ›› 2019, Vol. 28 ›› Issue (3): 34208-034208.doi: 10.1088/1674-1056/28/3/034208
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Electromagnetic scattering of charged particles in a strong wind-blown sand electric field
Xingcai Li(李兴财), Xuan Gao(高璇), Juan Wang(王娟)
- 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
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
摘要：
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.
中图分类号: (Propagation, transmission, attenuation, and radiative transfer)
- 42.68.Ay