# [1]吴嘉峰,陈永平,施明恒,等.三角形微通道中环状冷凝过程的数值模拟[J].东南大学学报(自然科学版),2007,37(3):423-426.[doi:10.3969/j.issn.1001-0505.2007.03.014] 　Wu Jiafeng,Chen Yongping,Shi Mingheng,et al.Numerical simulation for annular condensation flow in triangular microchannels[J].Journal of Southeast University (Natural Science Edition),2007,37(3):423-426.[doi:10.3969/j.issn.1001-0505.2007.03.014] 点击复制 三角形微通道中环状冷凝过程的数值模拟() 分享到： var jiathis_config = { data_track_clickback: true };

37

2007年第3期

423-426

2007-05-20

## 文章信息/Info

Title:
Numerical simulation for annular condensation flow in triangular microchannels

Author(s):
School of Energy and Environment, Southeast University, Nanjing 210096, China

Keywords:

TK124
DOI:
10.3969/j.issn.1001-0505.2007.03.014

Abstract:
A one dimensional steady condensation model for annular flow in triangular microchannels was developed. The curvature radius distribution of the condensate stream along the channel was calculated. It is found that the curvature radius of the liquid phase increases rapidly at the beginning. When the condensation process developes along the microchannels, the radius increase turns to be more slowly. At the end of condensation range the radius increases rapidly again. The smooth radius distribution takes place in the most part of the total condensation length. The total condensation length is determined by the contact angle, the hydraulic diameter of the channel, the steam pressure and the heat flux. A smaller contact angle and heat flux or a larger hydraulic diameter and steam pressure cause a longer condensation length. The change of the pressure in the liquid phase and the velocities along the channel is remarkable. This one dimensional steady model provides a better understanding of the mechanisms of condensation in triangular microchannels.

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