摘要
通过实验观察了过冷水在壁面上的结冰过程,采用高速相机分别记录水平和竖直2个方向的冰生长过程.分别研究了接触角和导热率2个壁面材料参数对冰生长的影响,并且针对接触角影响结冰的机制进行了探讨.结果显示:壁面导热率可明显改变壁面上冰的速度和形态;接触角对结冰速度改变较少,但在导热率低时影响大.
Icing on the airplane is an important factor for the safety of aviation,but the impact of surfaces on icing growth is not fully understood.In this paper,the icing process of the supercooling water on the substrate was studied.The vertical and horizontal growth of ice were recorded respectively by using 2-view high speed cameras.The influence of contact angle and thermal conductivity on the ice growth was studied respectively.The influence of contact angle and surface energy on horizontal ice growth was analyzed in detail.The results show that the thermal conductivity can significantly influence the horizontal velocity and shape ofice.The contact angle has little influence on thehorizontal velocity when the thermal conductivity is large,but it has a great influence at a lower thermal conductivity.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2016年第4期588-594,共7页
Journal of Shanghai Jiaotong University
关键词
表面能
壁面结冰
结冰速度
接触角
导热率
surface energy
icing on substrate
velocity of icing
contact angle
thermal conductivity
作者简介
王静（1988-），女，山东省潍坊市人，硕士生，主要研究方向为飞机结冰．
刘洪（联系人），男，教授，电话（Tel-）：02134206383；Email：hongliu@sjtu．edu．cn．
