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Homogeneous bubble nucleation in liquids: The classical theory revisited

机译:液体中均匀气泡成核:经典理论的再探讨

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The classical theory of homogeneous bubble nucleation is reconsidered by employing a phenomenological nucleation barrier in the capillarity approximation that utilizes the superheat threshold achieved in experiments. Conseqeuntly, an alogirthm is constructed for the evaluation of the superheat temperatures in homogeneous boiling (tensile strengths in cavitation), the critical radii and steady-state nucleation rates. The nucleation theorem is written in this framework and is applied to the classical theory for homogeneous bubble nucleation for the phenomenological nucleation barrier employed. The superheat temperatures calculated show excellent agreement over a wide range of liquid pressures for mot of the substances investigated. The steady-state nucleation rates are also altered by many orders of magnitude, in agreement with the results of previous investigators using different approaches.
机译:通过在毛细近似中采用现象学成核屏障,重新利用了实验中获得的过热阈值,重新考虑了均匀气泡成核的经典理论。因此,构造了一个用于估计均匀沸腾中的过热温度(空化中的拉伸强度),临界半径和稳态成核速率的算法。成核定理是在此框架中编写的,并应用于采用的现象学成核屏障的均相气泡成核的经典理论。所计算的过热温度在广泛的液体压力范围内显示出极好的一致性,从而可以研究多种物质。与先前使用不同方法的研究人员的结果一致,稳态成核速率也改变了多个数量级。

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