水平方向上冰中受陷气泡形成和分布实验研究  

Experimental study on the formation and distribution of trapped air bubbles in horizontal ice slice

作　　者：邵苛苛 宋孟杰 江正勇 张旋 张龙 高润淼 甄泽康 SHAO Keke;SONG Mengjie;JIANG Zhengyong;ZHANG Xuan;ZHANG Long;GAO Runmiao;ZHEN Zekang(School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学机械与车辆学院,北京100081

出　　处：《化工学报》2023年第S01期161-164,共4页CIESC Journal

基　　金：国家自然科学基金项目(52076013);北京市自然科学基金项目(3212024);国家外国专家项目计划项目(G2022178023 L)。

摘　　要：为研究水冻结成冰过程中出现的受陷气泡形成和分布特性,在水平Hele-Shaw cell内进行了水膜冻结实验。研究发现,冰中存在蛋状和针状两种类型的气泡,其行为受冰生长速率的影响。当冰生长速率小于20.6μm/s和9.4μm/s时,分别会有针状气泡出现和蛋状气泡消失的现象,当冰的生长速率小于3.1μm/s时冰中不会出现气泡。随着冰的生长,气泡的尺寸呈现先增加后趋于恒定的趋势。研究结果有助于指导优化防/除冰技术优化。To investigate the formation and distribution characteristics of trapped air bubble during freezing process of water,a water slice freezing experiment is conducted in a horizontal Hele-Shaw cell.Results show two types of bubbles in ice,egg-shaped and needle-shaped,and their behavior is affected by the ice growth rate.When the rate is less than 20.6μm/s and 9.4μm/s,needle-shaped bubbles appear and egg-shaped bubbles disappear,respectively.When it is less than 3.1μm/s,no bubble appears.As the ice grows,the bubble size increases first and then be constant.These results may help to optimize anti-icing/deicing technology.

关 键 词：冻结水膜 受陷气泡 冰生长速率 气泡生长 气泡分布 

分 类 号：TB65[一般工业技术—制冷工程]