| 气溶胶沉降扩散研究进展(特邀) |
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| 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):20220313-1-20220313-11. |
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| 作者姓名： | 顾有林 陈国龙 胡以华 何海浩 丁婉莹 曹浩 |
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| 作者单位： | 1.国防科技大学 脉冲功率激光技术国家重点实验室，安徽 合肥 230037 |
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| 基金项目： | 国家自然科学基金 (62075241)；先进激光技术安徽省实验室基金 (20191003) |
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| 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。
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| 关 键 词： | 气溶胶 沉降 扩散 仿真模型 计算方法 |
| 收稿时间： | 2022-05-07 |
Research progress on the deposition and diffusion of aerosols (invited) |
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| Affiliation: | 1.State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China2.Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China3.National University of Defense Technology, Hefei 230037, China |
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| 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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