Effect of temperature fluctuations on the rate of nucleation

被引：0

作者：

Derevich, I.V. ^{[1
]}

机构：

[1] Russian Academy of Sciences, Institute for High Temperatures, Krasnokazarmennaya, 17A, Moscow, 127412, Russia

来源：

| 1997年 / Begell House Inc Publ卷 / 28期

关键词：

Correlation methods - Nucleate boiling - Random processes - Relaxation processes - Thermal effects - Turbulent flow;

D O I：

10.1615/HeatTransRes.v28.i4-6.120

中图分类号：

学科分类号：

摘要：

On the basis of the theory of stochastic processes the effect of temperature fluctuations on the rate of homogeneous and heterogeneous nucleation on the surfaces of particles suspended in a turbulent flow is investigated. It is found that temperature fluctuations increase the effective rate of slow reactions with a characteristic time the much exceeds the time of temperatures correlation. For fast reactions where the characteristic time small compared to the time scale of temperature fluctuations decreasing of the reaction intensity is obtained. In the case of heterogeneous flows the particles temperature relaxation time plays a significant role on the intensity of nucleation.

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