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根据等效颗粒模型和分形理论,运用Mie理论和离散偶极子近似方法分别计算了烟尘簇团粒子在波长为0.6328μm的电磁波入射情况下的单次散射特性.根据辐射输运理论,利用MonteCarlo方法对电磁波在烟尘中的传输特性进行数值计算,给出烟尘中反射率和透射率随入射角和烟尘厚度变化的数值结果,并分析了入射角、烟尘粒子的密度和厚度对反射率和透射率的影响.这为研究电磁波在密集分布介质中的传输特性提供了一种方法.
According to the equivalent particle model and the fractal theory, the single scattering properties of the soot particles in the electromagnetic wave with a wavelength of 0.6328μm were calculated by using the Mie theory and the discrete dipole approximation method respectively. According to the radiation transport theory, Monte Carlo The numerical results of the transmission characteristics of electromagnetic waves in soot are given. The numerical results of reflectivity and transmissivity change with the angle of incidence and the thickness of soot are given. The influence of incident angle, density and thickness of soot particles on the reflectivity and transmission This provides a method for studying the transmission characteristics of electromagnetic waves in densely distributed media.