Prof. Youlin Gu

National University of Defense Technology

State Key Laboratory of Pulsed Power Laser Technology

Speech title： Research progress of aerosol deposition and diffusion

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 deposition flux, deposition velocity, concentration distribution and diffusion velocity of aerosol particles. Relevant research can provide scientific basis for the optimization of aerosol generation, evaluation and prediction of shelter effect. In this paper, three major methods for the generation of aerosol were summarized, the mechanism of aerosol particles settling and diffusing in the atmosphere was analyzed, the calculation, simulation and experimental measurement methods of aerosol settling and diffusing characteristic parameters were expounded. Finally, in view of the challenges in the study of aerosol deposition and diffusion, perspectives on the future theoretical analysis, numerical simulation, experimental research and comprehensive application are provided.

Biography

Youlin, Gu. Professor, National University of Defense Technology, master supervisor, visiting scholar of University of Maryland, USA. Engaged in the research of matting materials for a long time, focus on the electromagnetic attenuation mechanism and test technology of biological extinction materials, improve the extinction material wide band and safety and environmental protection characteristics. Preside over a number of projects, such as general projects of national Natural Science Foundation of China, key projects of military level and natural Science Foundation of Anhui Province. Won first prize of science and technology of Anhui Province twice and second prize of military science and technology progress twice. Published more than 70 academic papers, and more than 40 have been indexed by SCI or EI. More than 20 authorized invention patents. Published 1 monograph, 3 textbooks and translations. Young editorial board member of Infrared and Laser Engineering.