中国电机工程学报2016，Vol.36Issue(23)：6432-6440,9.DOI:10.13334/j.0258-8013.pcsee.160452
气液两相流液滴群撞击法湿度测量实验研究
Experimental Research on Wetness Measurement With the Method of Gas-liquid Two-phase Flow Droplet Cluster Impingement
摘要
Abstract
We put forward an idea that by measuring droplet cluster impingement force to gain wetness of gas-liquid two-phase flow, and developed the experimental rig. We used air and water to simulate wet steam by neglecting phase transitions and heat dissipation loss effect. The paper, investigating the law that droplets impinging force varies with wetness variation, presented an empirical formula based on the experimental data, and that relationship was verified. The results demonstrate that the quantity of water spraying and the velocity have significant influence on droplets impinging force. Under the same mean velocity condition and with wetness increasing, the droplets impinging force increases non-linearly. The method has been proved to be feasible and the experimental error is 6.45%; the variation of droplet size distribution causes a negligible error that is 0.74%. The method is concise, having little interference to the main flow, and the minimum wetness fraction, determined by this approach, is 0.0083%.关键词
气液两相流/液滴群撞击力/湿度测量/气流速度/粒径分布/测量误差Key words
gas-liquid two-phase flow/droplet cluster impinging force/wetness measurement/airflow velocity/droplet size distribution/measurement error分类
能源科技引用本文复制引用
张智慧,高铁瑜,李皓璠,王贤勇,李军..气液两相流液滴群撞击法湿度测量实验研究[J].中国电机工程学报,2016,36(23):6432-6440,9.基金项目
教育部高等学校创新科研团队基金(IRT1280)；国家自然科学基金项目(50806059)。The Innovative Research Team in University of Ministry of Education of China (IRT1280) （IRT1280）
The National Natural Science Foundation of China (50806059) （50806059）
