冷空气中水滴的冷却与冻结过程研究

工程热物理学报 , 2008, 29(8): 1360-1362.

1.北京工业大学环境与能源工程学院,北京,100022

2.北京工业大学环境与能源工程学院,北京,100022

3.北京工业大学环境与能源工程学院,北京,100022

4.北京工业大学环境与能源工程学院,北京,100022

基金项目: 北京市拔尖创新人才选拔计划项目国家重点基础研究发展计划(973计划)(2005CB724201) 国家自然科学基金(50376001)

INVESTIGATION OF COOLING AND FREEZING OF WATER DROPLET IN THE COLD AIR

本文通过实验和数值模拟手段研究冷空气中水滴的冷却和随后的冻结过程.微小水滴被黏附在热电偶感温点上并置于冷空气中,测量了水滴冷却和冻结过程中的温度变化.用显微镜观察了冻结过程的现象,建立了水滴冻结的相变动力学模型.在此基础上的数值模拟结果基本与实验相符.

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