Ostwald熟化和雨引发动力学
Ostwald ripening and the kinetics of rain initiation
摘要：
云物理学的一个中心问题是理解水滴生长的动力学。认为中等尺寸液滴的生长过程中存在“凝结-聚结瓶颈”。在此，我们将奥斯特瓦尔德熟化的Lifshitz-Slezov理论应用于雨滴生长的动力学。分析表明，动力学障碍雨启动是不显着的。Ostwald熟化可以大大提高液滴在重力作用下的表观碰撞效率。
英文摘要：
A central problem in cloud physics is understanding the kinetics of the growth of water droplets. It is believed that there exists a 'condensation-coalescence bottleneck' in the growth of intermediate size droplets. Here the Lifshitz-Slezov theory of Ostwald ripening is applied to the kinetics of the growth of rain drops. The analysis shows that kinetic barriers to rain initiation are not significant. It is also shown that Ostwald ripening can greatly enhance the apparent collision efficiency of droplets falling under gravity.
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