| 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)。针对现有的研究，认为目前针对流动冷凝提出的流型图还很少，特别是对于微管道的尤为缺乏。另外，现有的流型图应用于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。 |
| 关键词: 流动冷凝 流型 流型图 水平管 |
| DOI： |
|
| 基金项目:国家自然科学基金（51322605）和国家科技重大专项（2011ZX05039-001-004）资助项目。 |
|
| A Review on Flow Pattern Maps of Condensation in Horizontal Tubes |
|
Zhuang Xiaoru1,2, Gong Maoqiong1, Zou Xin1, Chen Gaofei1, Wu Jianfeng1
|
| (1.Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences;2.University of Chinese Academy of Sciences) |
| Abstract: |
| 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. Furthermore, this paper presents that there are a few flow pattern maps on the condensation, especially for the microchannel. And the proposed maps could not apply to high pressure and low temperature refrigerants and most recent work didn’t well combine the flow regime with the investigation of heat transfer coefficient and pressure drop. |
| Key words: flow condensation flow pattern flow pattern map horizontal tube |
