期刊论文

Study on the Evolution of Steam Dropwise Condensation and Droplet Growth Mode

中文

工程热物理学报

0253-231X

2023

44

07

1881-1890

国家自然科学基金资助项目(No.52106075)；

本校为其他机构

蒸汽的滴状冷凝进程中，液滴生长包括冷凝生长与合并生长。液滴生长作为影响滴状冷凝演变的关键行为，其研究有助于深入理解滴状冷凝演变机制和换热机理。本文基于滴状冷凝全过程的数值模拟，针对不同凝结核密度下的滴状冷凝演变和液滴生长方式开展研究。模拟中采用Cassie模型对液滴的冷凝生长进行描述，耦合邻近搜索算法和守恒定律对液滴的合并生长过程进行模拟。经实验结果和理论模型验证，本文模拟方法具有较高的可靠性。结果表明：最大液滴尺寸主要来源于合并生长，其增速是衡量滴状冷凝演变速度的表征；随着凝结核密度的升高，演变速度呈线性提高，换热能力先增后减；高合并频率的表面能有...

During the dropwise condensation process of steam,droplet growth includes condensation growth and coalescence growth.Droplet growth is a key behavior affecting the evolution of dropwise condensation,and its research helps to understand the evolution mechanism and heat t...MORE During the dropwise condensation process of steam,droplet growth includes condensation growth and coalescence growth.Droplet growth is a key behavior affecting the evolution of dropwise condensation,and its research helps to understand the evolution mechanism and heat transfer mechanism of dropwise condensation.In this p...