高校化学工程学报2026，Vol.40Issue(2)：241-253,13.DOI:10.3969/j.issn.1003-9015.2025.00.052
受限空间内烟气气溶胶形态表征系统开发与量化分析
Development of a characterization system and quantitative analysis for morphology of smoke aerosol in a confined space
摘要
Abstract
To address the lack of morphological detection technologies for smoke aerosols,this study developed a biomimetic aerosol dynamic characterization system based on the human oral cavity structure.By integrating synchronized laser imaging and multi-parameter quantitative analysis,the system enables spatiotemporal visualization and morphological feature extraction of aerosol diffusion.Aerosol behavior under varying initial velocities(modulated by adjusting cigarette diameter)was investigated through the extracted four key parameters from morphological images:projection area(S),global mean grayscale(L),regional grayscale standard deviation(σL),and centroid migration(Cx,Cy).The results show that the relative deviation for ten repeated detections of S is 0.9%,demonstrating the stability of the device.The positive correlations between inlet initial velocity and S(ρ=0.96),L(ρ>0.9),and σL(ρ=0.94)are also revealed.The dynamic evolution of these feassures aligned with an attenuation-deposition hybrid model,demonstrating high-velocity aerosols in curved-wall confined spaces exhibit the reduced sedimentation,improved uniformity,and intensified clustering.The developed platform provides a robust and precise toolkit for the research on the aerosol diffusion dynamics and deposition characteristic.关键词
可视化动态分析/衰减模型拟合/检测平台构建/扩散特征提取/烟气气溶胶扩散Key words
visual dynamic analysis/attenuation model fitting/detection platform construction/diffusion feature extraction/smoke aerosol diffusion分类
化学化工引用本文复制引用
沈一淼,李永生,田雨农,廖付,李庆祥,吴可君,钱超,侯晓静,李石头..受限空间内烟气气溶胶形态表征系统开发与量化分析[J].高校化学工程学报,2026,40(2):241-253,13.基金项目
浙江大学-浙江中烟联合实验室项目(512104-I2230C). （512104-I2230C）
