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首页> 外文期刊>International Journal of Heat and Mass Transfer >Evaporation of a highly superheated liquid
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Evaporation of a highly superheated liquid

机译：蒸发高度过热的液体

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摘要

Methods of calculating processes of intensive evaporation in conditions where the vapor flux density j is limited by the evaporation kinetics and the heat supply have been considered. A convenient approximation of the superheat dependence of j based on the continual theory of a pressure jump stopped by a counter flow at the interface has been obtained. It has been found that a pressure jump may be assumed to be isoentropic with a sufficient accuracy, which simplifies the calculations considerably. It is shown that calculations of the process of intensive evaporation by a continual model, without invoking molecular kinetics, practically coincide with calculations by the kinetic evaporation theory. A simple criterion of transition from the regime limited by the evaporation kinetics to that limited by the heat supply has been suggested from conjugation at the interface of heat and mass flows.
机译：已经考虑了在蒸汽通量密度j受蒸发动力学和热量供应限制的条件下的密集蒸发过程的计算方法。基于由界面处的逆流阻止的压力跳跃的连续理论，已经获得了j的过热依赖性的方便近似。已经发现，可以假设压力跃变具有足够的精度是各向同性的，这大大简化了计算。结果表明，在不调用分子动力学的情况下，通过连续模型进行的强蒸发过程的计算与动力学蒸发理论的计算实际上是一致的。从热和质量流的界面上的共轭，已经提出了一个简单的准则，从受蒸发动力学限制的状态过渡到受热限制的状态。

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