Simulation of Aerosol Dynamics: A Comparative Review of Mathematical Models
Simulation of Aerosol Dynamics: A Comparative Review of Mathematical Models
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DOI：
10.1080/02786828608959088
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发表时间：
1986
影响因子：
5.2
通讯作者：
C. Seigneur;A. B. Hudischewskyj;J. Seinfeld;K. T. Whitby;Evan R. Whitby;James R. Brock;Harold M. Barnes
中科院分区：
文献类型：
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作者：
C. Seigneur;A. B. Hudischewskyj;J. Seinfeld;K. T. Whitby;Evan R. Whitby;James R. Brock;Harold M. Barnes
对气溶胶动力学的数学模型进行了比较评述。三种方法被认为是基于连续的，离散的（节），和参数化（对数正态）表示的气溶胶粒径分布。凝结和扩散限制凝结的模拟进行了三个典型的案例研究，明确，朦胧和城市大气气溶胶浓度与这些建模方法。基于这些方法的模型的相对精度和计算成本进行了比较。基于连续粒度分布的模型为凝结和冷凝提供了精确的解决方案。分段方法模拟凝结非常好，但需要一个精细的尺寸分辨率，以尽量减少数值扩散模拟冷凝。基于对数正态模态粒径分布的参数化模型计算效率高，但往往高估凝结速率和凝结产生的气溶胶浓度峰值。
A comparative review of mathematical models of aerosol dynamics is presented. Three approaches are considered that are based on continuous, discrete (sectional), and parametrized (lognormal) representations of the aerosol size distribution. Simulations of coagulation and diffusion-limited condensation are performed with these modeling approaches for three case studies typical of clear, hazy, and urban atmospheric aerosol concentrations. The relative accuracies and computational costs of models based on these approaches are compared. The models based on a continuous size distribution provide an accurate solution for both coagulation and condensation. Sectional approaches simulate coagulation very well but require a fine size resolution to minimize numerical diffusion in the simulation of condensation. The parametrized model based on log-normal modal size distributions is computationally efficient but tends to overestimate the rate of coagulation and the peak aerosol concentration resulting from condensatio...