CAJ | 학술논문

针对自然界中雾天气向霾天气转化的现象,提出建立和发展雾环境气溶胶颗粒物多效应的动力学模型。基于离散系统的颗粒群平衡方程和多重Monte Carlo算法,分别对雾形成阶段（凝并、冷凝和成核3个动力学事件占主导）,雾发展阶段（凝并、破碎、沉积和成核4个动力学事件占主导）和雾消散阶段（破碎、蒸发和沉积3个动力学事件占主导）气溶胶颗粒物平均体积、颗粒数目随时间的演变过程进行研究。结果表明：气溶胶颗粒物的初始体积尺度为1,经过雾的生命周期进入消散阶段时,尺度为0.0156的细小气溶胶颗粒数迅速增加,1000 s时间已发展至初始值的8.12倍。研究结果解释了自然界中雾天气向霾天气转化的过程和物理机制。
침대자연계중무천기향매천기전화적현상,제출건립화발전무배경기용효과립물다효응적동역학모형。기우리산계통적과립군평형방정화다중Monte Carlo산법,분별대무형성계단（응병、냉응화성핵3개동역학사건점주도）,무발전계단（응병、파쇄、침적화성핵4개동역학사건점주도）화무소산계단（파쇄、증발화침적3개동역학사건점주도）기용효과립물평균체적、과립수목수시간적연변과정진행연구。결과표명：기용효과립물적초시체적척도위1,경과무적생명주기진입소산계단시,척도위0.0156적세소기용효과립수신속증가,1000 s시간이발전지초시치적8.12배。연구결과해석료자연계중무천기향매천기전화적과정화물리궤제。
Multi-effective dynamics models of aerosol particles in the fog layer were established and developed to depict the natural phenomenon for conversion from fog to haze weather.Based on the population balance equation（PBE） of discrete system and the Multi-Monte Carlo（MMC） method,the evolution processes of average aerosol particle sizes and particle numbers with the time were simulated numerically for three stages of fog,which involve the formation of fog（dominated by aerosols dynamical effects of coagulation,condensation and nucleation）,the development of fog（dominated by aerosols dynamical effects of coagulation,breakage,deposition and nucleation） and the dissipation of fog（dominated by aerosols dynamical effects of breakage,evaporation and deposition）.The results indicated that the initial volume of aerosol particle is one.The numbers of particles with 0.0156 of volume-size are increased quickly when the life cycle of fog comes into the dissipation stage.At the time of 1000 s,the numbers of smaller-size particles are 8.12 times higher than those of initial time.The above results reveal the process and physical mechanism of fog conversion into haze weather in nature.