顾有林, 陈国龙, 胡以华, 何海浩, 丁婉莹, 曹浩. 气溶胶沉降扩散研究进展(特邀)[J]. 红外与激光工程, 2022, 51(7): 20220313. DOI: 10.3788/IRLA20220313
引用本文: 顾有林, 陈国龙, 胡以华, 何海浩, 丁婉莹, 曹浩. 气溶胶沉降扩散研究进展(特邀)[J]. 红外与激光工程, 2022, 51(7): 20220313. DOI: 10.3788/IRLA20220313
Gu Youlin, Chen Guolong, Hu Yihua, He Haihao, Ding Wanying, Cao Hao. Research progress on the deposition and diffusion of aerosols (invited)[J]. Infrared and Laser Engineering, 2022, 51(7): 20220313. DOI: 10.3788/IRLA20220313
Citation: Gu Youlin, Chen Guolong, Hu Yihua, He Haihao, Ding Wanying, Cao Hao. Research progress on the deposition and diffusion of aerosols (invited)[J]. Infrared and Laser Engineering, 2022, 51(7): 20220313. DOI: 10.3788/IRLA20220313

气溶胶沉降扩散研究进展(特邀)

Research progress on the deposition and diffusion of aerosols (invited)

  • 摘要: 气溶胶沉降扩散主要研究气溶胶粒子在大气中的运动状态、浓度迁移、表面沉积过程。表征物理量主要包括气溶胶粒子沉降通量、沉降速度、浓度分布、扩散速度等。开展相关研究可以为气溶胶生成方式优化、消光效果评估与预测等提供科学依据。文中概括了三种气溶胶生成方式,分析了气溶胶粒子在大气中沉降扩散过程机理,阐述了气溶胶沉降与扩散特性参量计算、仿真模拟和试验测定方法。结合目前气溶胶沉降扩散研究面临的挑战,对气溶胶沉降扩散理论分析、数值模拟、试验研究与综合运用进行了展望。

     

    Abstract: Aerosol deposition and diffusion mainly study the motion state, concentration migration and surface deposition process of aerosol particles in the atmosphere. The physical parameters mainly include the deposition flux, deposition velocity, concentration distribution and diffusion velocity of aerosol particles. Relevant research can provide a scientific basis for the optimization of aerosol generation and the evaluation and prediction of extinction effects. In this paper, three major methods for the generation of aerosols were summarized, the mechanism of aerosol particles settling and diffusing in the atmosphere was analysed, and the calculation, simulation and experimental measurement methods of aerosol settling and diffusing characteristic parameters were expounded. In view of the challenges in the study of aerosol deposition and diffusion, perspectives on future theoretical analyses, numerical simulations, experimental research and comprehensive applications are provided.

     

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