The paper deals with the problems of describing heat transfer modes in a turbulent flow of supercritical water based on generalization of known experimental data for vertical round tubes. Due to the danger of overheating of heat transfer surfaces, special attention is paid to modes with deteriorated heat transfer. Later, the authors developed a universal model that includes the well-known Dittus–Boelter correlation with corrections for changes in the thermophysical properties of water with temperature and the effect of thermal acceleration occurring in the flow. It is shown that the variation of the coefficients in the correction functions allows us to take into account individual features of changes in characteristics of the process in modes with deteriorated heat transfer. Three forms of displaying the modes of heat transfer to water of supercritical parameters with conditional boundaries of the modes of normal, improved and deteriorated heat transfer are proposed. The estimates of the limiting heat flux obtained in this paper for normal modes are compared with the data of other authors.

该论文基于对垂直圆管已知实验数据的概括，讨论了描述超临界水湍流中的传热模式的问题。由于传热表面存在过热的危险，因此特别注意传热恶化的模式。后来，作者开发了一个通用模型，其中包括众所周知的 Dittus-Boelter 相关性，以及对水的热物理特性随温度的变化以及流动中发生的热加速影响进行修正的模型。结果表明，修正函数中系数的变化使我们能够考虑在传热恶化的模式中过程特性变化的个体特征。提出了三种显示超临界参数对水的传热模式，并有正常、改进和劣化传热模式的条件边界。在本文中获得的对正常模式的极限热通量的估计与其他作者的数据进行了比较。