上海交通大学学报(自然版) ›› 2016, Vol. 50 ›› Issue (04): 588-584.

• 航空、航天 • 上一篇    下一篇

表面能对过冷水中冰生长的影响

王静,孔维梁,王福新,刘洪   

  1. (上海交通大学 航空航天学院, 上海 200240)
  • 收稿日期:2015-04-17 出版日期:2016-04-28 发布日期:2016-04-28

Experimental Study of Surface Energy on Growth of Icing in Supercooled Water

WANG Jing,KONG Weiliang,WANG Fuxin,LIU Hong   

  1. (School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2015-04-17 Online:2016-04-28 Published:2016-04-28

摘要: 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.

关键词: 表面能, 壁面结冰, 结冰速度, 接触角, 导热率

Abstract: Abstract: 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.

Key words: Key words: surface energy, icing on substrate, velocity of icing, contact angle, thermal conductivity

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