实验流体力学2016，Vol.30Issue(3)：27-32,6.DOI:10.11729/syltlx20160004
水滴结冰结霜及合成双射流除霜除冰实验研究
An experimental investigation on the process of droplet icing/frosting and defrosting/deicing using dual synthetic j et
李玉杰 1罗振兵1
作者信息
- 1. 国防科技大学 航天科学与工程学院，长沙 410073
- 折叠
摘要
Abstract
The processes of a droplet icing/frosting and defrosting/deicing using a dual syn-thetic jet actuator (DSJA)was experimentally studied.The temperature of a semiconductor-cooled board was reduced to -30℃,and the DSJA was started after the droplet was frozen.The processes of the droplet icing,frosting,defrosting and deicing were observed by an electron micro-scope.The experimental results show that the structure of the frost changes quickly from needle to column,and then to granule.Meanwhile,the thickness of the frost attenuates.Later on,be-cause the DSJ can enhance the heat transfer,the cone of the frozen droplet becomes flattish and the height of the frozen droplet decreases slowly.The thawed water flows downwards and freezes again.The interface area between the frozen droplet and the semiconductor-cooled board is in-creased.关键词
合成双射流/水滴/结霜/除霜/除冰Key words
dual synthetic j et/droplet/frosting/defrosting/deicing分类
航空航天引用本文复制引用
李玉杰,罗振兵..水滴结冰结霜及合成双射流除霜除冰实验研究[J].实验流体力学,2016,30(3):27-32,6.
