摘要
在废热锅炉火管管束间的气液两相流中 ,局部含气率的分布直接影响管束间流场、温度场的均匀性以及火管壁温工况 .使用单纤光纤探针对水平管束间含气率的分布进行测量 .实验沿管周方向以 5度的间隔布置测点 ,得出含气率随径向、角度、气量、液量等参数变化的分布规律 .同时通过分析得到了平均截面含气率的计算式 .
The investigation of distribution of void fraction between tube bundle is of practical importance because of its effect on the distribution of temperature. In the present paper single-fiber optical probe is used to measure the distribution of void fraction. All the measurements are conducted along the circumference every 5 degrees. The distribution of void fraction near the tube is obtained and the effect of radius, angle, liquid and gas flowrate on the distribution of void fraction is investigated. Finally a practical correlation is fitted to calculate the average void fraction on the section.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第3期316-320,共5页
CIESC Journal
基金
国家自然科学基金重大项目 (No .5 9995 46 0 )
国家杰出青年基金项目 (No .5 972 5 6 16 )共同资助~~
