滴状冷凝的液滴分布特性  

Droplet distribution characteristics of dropwise condensation

作　　者：赵亮[1] 张梦妍 果正龙 郭亚丽[1] 龚路远[1] 沈胜强[1] ZHAO Liang;ZHANG Mengyan;GUO Zhenglong;GUO Yali;GONG Luyuan;SHEN Shengqiang(National Joint Engineering Research Center for Thermal Energy Integration,School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China)

机构地区：[1]大连理工大学能源与动力学院热能综合利用技术国家地方联合工程研究中心,辽宁大连116024

出　　处：《化工学报》2024年第12期4490-4500,共11页CIESC Journal

基　　金：国家自然科学基金项目(52106075)。

摘　　要：作为一种高效的传热形式,蒸汽冷凝有效应用于石油化工、火电核电、海水淡化及热能管理等工业领域,具有广泛的应用背景,其中研究液滴分布特性是分析液滴演变及传热过程的关键。基于成核、生长、脱落等液滴行为演变构建了滴状冷凝全过程演变及传热数学模型,总结演变进程中最大液滴的位置分布规律和不同尺寸液滴的数量分布规律,展示了竖直及弯曲疏水壁面上的液滴分布特性,为冷凝强化换热提供相应的理论依据。As a highly efficient form of heat transfer,steam condensation is effectively used in a wide range of applications in industrial fields such as petrochemical,thermal and nuclear power,desalination and thermal energy management,and has a wide range of application backgrounds.Among them,the study of droplet distribution characteristics is the key to analyze the droplet evolution and heat transfer process.In this paper,based on the evolution of droplet behavior such as nucleation,growth,shedding,etc.,a mathematical model of the whole process of droplet condensation evolution and heat transfer is constructed,and the positional distribution law of the largest droplet and the number distribution law of droplets of different sizes in the process of evolution are summarized to show the characteristics of the distribution of droplets on the vertical and curved hydrophobic wall,which provides corresponding theoretical basis for the enhancement of heat transfer in condensation.

关 键 词：滴状冷凝 液滴分布 最大液滴 传热 凝结 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]