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从一般的化学势形式及传质动力学方程出发推导了有电离子作为凝结核时液滴生长的动力学模型,并对该模型进行了简化,在此模型基础上,分析讨论了电离子电量对液滴生长的影响.研究结果表明:有电离子作为液滴凝结核时,液滴生长的无因次液滴中肯半径比无电离子条件下液滴生长的中肯半径要小,液滴容易生长.同时也得到:当有电离子作为液滴凝结核时,如果液滴初始半径小于中肯半径,液滴将不会消失,而是趋于某个稳定值;随着无因次电量θ的不断增加,无因次液滴中肯半径不断减小,而液滴相应的稳定值则不断增大,当θ增大到一定程度时,不论液滴初始半径值如何,液滴都不会减小而是始终增长.
Based on the general chemical potential forms and mass transfer kinetics equations, the kinetic model of droplet growth with ions as coagulation nucleus is deduced and the model is simplified. Based on this model, the ionization potential On the droplet growth.The results show that when there is an ion as the droplet condensation nucleus, the positive radius of the dimensionless droplet growing is smaller than the radius of the neutral droplet growing without ionization, and the droplet is easy Growth.At the same time we also get: when there is an ion as the condensation nucleus of the droplet, if the initial radius of the droplet is smaller than the medium radius, the droplet will not disappear, but tends to a certain stable value; Increasing steadily, the radius of non-dimensional drop continuously decreases, while the corresponding steady value of drop increases. When θ increases to a certain degree, the droplet will not decrease no matter the initial radius of the drop But always grow.