中文摘要：

水平管内流动冷凝的两相流型对其传热与流动的研究十分重要,流型图则是流型辨别及其转换判断的重要工具。本文总结了目前水平管内流动冷凝流型图及其转换标准的研究进展,列举了七种针对流动冷凝提出的流型图：Breber et al.（1980）,Tandon et al.（1982）,Cavallini et al.（2002,2006）,El Hajal et al.（2003）,Kim et al.（2012）和Nema et al.（2014）,根据现有的研究,发现目前的两相流型图大多针对绝热条件及流动沸腾所提出,其应用于流动冷凝中存在一定的偏差,而流动冷凝两相流型图目前研究还较少。另外,现有的流型图大多针对常规管道和基于常温常压工质所提出,其应用于微管道和低温或高压等工质存在一定的困难,且其研究还未能与传热及压降模型的研究实现较好的联系。

英文摘要：

Two-phase flow pattern is important for investigating heat transfer coefficients and pressure drops of condensation in horizontal tubes. And the flow pattern maps are the usual approach to predict flow regimes and their transitions. In this paper,a review on flow pattern maps and flow regime transitions of condensation in horizontal tubes of Breber et al.（ 1980）,Tandon et al.（ 1982）,Cavallini et al.（ 2002,2006）,El Hajal et al.（ 2003）,Kim et al.（ 2012） and Nema et al.（ 2014） is presented. In recent researches,most two-phase flow pattern maps have been developed for the adiabatic and evaporation conditions. The applications of those maps on the condensation are not applicable and the flow pattern maps of condensation are still lacks. Moreover,this paper presents that a large number of the recent flow pattern maps have been conducted with macroscale channels and conventional reduced pressure and temperature refrigerants.Those maps could not apply to microscale channels and high pressure and low temperature refrigerants. At last,the majority of recent work didn＇t well combine the flow regime with the investigation of heat transfer coefficient and pressure drop.