摘要
自七十年代以来，液滴冲击冷却的研究受到广泛的关注．对于单个液滴的冲击换热已进行了很多的分析．但由于冲击液滴流动复杂且过程短暂，所以至今换热机理尚不清楚．本文着重研究冲击冷却效果最好的液滴泡状沸腾换热工况．
The nucleate boiling heat transfer for a impinging liquid droplet upon a hot surface has been investigated experimentally and analytically. Water and ethanol were used as boiling liquid. The impinging velocities ranged from 0.5 to 3 m/s, and the drop diameters were varied in the range of 2-4 mm. The effects of impinging velocity and liquid subcooling were examined. By use of a simple impinging model, the incipient time of nucleate boiling and surface temperature and heat flux during the impact were calculated. The experimental data agreed well with the calculated value.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1989年第2期193-195,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基
