Tsang T T, Pai P, Korgaonkar N V
Appl Opt. 1988 Feb 1;27(3):593-8. doi: 10.1364/AO.27.000593.
The objective of this work is to study the effects of ambient temperature, atmospheric condition, and particle size on the extinction coefficient of diesel fuel and fog oil smoke. A first-order closure model is used to describe the turbulent diffusion of the smoke in the atmospheric surface layer. Mean values of wind speed and diffusivity in the vertical direction are obtained by the use of the Monin-Obukhov similarity theory. The 2-D crosswind line source model also includes the aerosol kinetic processes of evaporation, sedimentation, and deposition. Numerical results are obtained from simulations on a supercomputer.
这项工作的目的是研究环境温度、大气条件和颗粒大小对柴油和雾油烟消光系数的影响。采用一阶闭合模型来描述大气表层中烟雾的湍流扩散。利用莫宁-奥布霍夫相似理论获得垂直方向风速和扩散率的平均值。二维侧风线源模型还包括蒸发、沉降和沉积的气溶胶动力学过程。数值结果是通过超级计算机模拟得到的。
