Early-stage evolution of particle size distribution due to gravitational coagulation
Early-stage evolution of particle size distribution due to gravitational coagulation
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DOI：
10.1080/02726350008906829
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发表时间：
2000-04-01
影响因子：
2.5
通讯作者：
Kuhlman, MR
中科院分区：
文献类型：
--
作者：
Jung, CH;Park, SH;Kuhlman, MR
对重力凝聚过程中气溶胶粒子尺寸分布的演化进行了数值研究。矩法也被应用于启动一个简单的方法来处理的粒度分布参数的变化。最后，一个解析解近似的碰撞内核到一个适合于分析的形式。结果进行了对比分析。推导出的解析解与数值矩量法吻合良好。然而，矩量法的结果并不完全符合直接数值积分的结果，因为粒度分布没有达到对数正态分布的形式。
Evolution of the particle size distribution of an aerosol undergoing gravitational coagulation in early time stages was numerically investigated. The moment method was also applied in initiating a simple approach to the changes of particle size distribution parameters. Finally, an analytical solution was developed approximating the collision kernel into a form suitable for the analysis. The results underwent analysis by comparison. The derived analytical solution was found to be in good agreement with the numerical moment method. However, the results of the moment method do not exactly coincide with the results of the direct numerical integration because the particle size distribution does not attain the log-normal size distribution form.