In this paper, the effect of two-phase interface morphology evolution on the flow and heat transfer characteristics in confined channels are reviewed in detail, which is one of the typical channel structures for the nuclear reactor core. The investigated contents mainly come from the open literature. In addition, this paper focuses on the important phenomena and methods proposed in recent decades, which simultaneously includes the closely related studies of authors published in the last several years. The primary contents of this paper mainly includes the following aspects: (1) the definition of confined channel is introduced based on the summary of various distinguishing criterions; (2) the effect of two-phase interface morphology on the flow and resistance characteristics is concluded, which are mainly related to the adiabatic flow conditions, thus the complex influence of boiling phenomenon can be neglected; (3) the effect of two-phase interface morphology on the flow boiling heat transfer characteristics is researched. Moreover, the development of flow boiling heat transfer model is reviewed, and the corresponding proposed model is introduced, which innovatively reflects the feature of confined channel and is considered worthy of further development; (4) the effect of two-phase interface morphology on the flow instability and boiling crisis characteristics are reviewed. Especially, the coupling relationship between them are introduced with the bubble dynamic behaviors dependent on the published research achievement of authors; (5) the material surface modification technology is proposed to be the enhanced heat transfer technology, which is also supposed to be the future research point for reactor thermal-hydraulics.

本文详细讨论了两相界面形态演变对密闭通道内流动和传热特性的影响，这是核反应堆堆芯的典型通道结构之一。研究内容主要来自公开文献。此外，本文重点介绍了最近几十年来提出的重要现象和方法，同时还包括了最近几年发表的与作者密切相关的研究。本文的主要内容主要包括以下几个方面：（1）在总结各种判别准则的基础上，介绍了有限通道的定义；（2）总结了两相界面形态对流动和阻力特性的影响，这主要与绝热流动条件有关；因此可以忽略沸腾现象的复杂影响。（3）研究了两相界面形态对流动沸腾传热特性的影响。此外，回顾了沸腾传热模型的发展，并介绍了相应的拟议模型，该模型创新地反映了密闭通道的特点，值得进一步发展。（4）综述了两相界面形态对流动不稳定性和沸腾危机特征的影响。特别是，根据作者发表的研究成果，以气泡动力学行为来介绍它们之间的耦合关系。（5）提出将材料表面改性技术作为增强的传热技术，