摘要
对水平放置的内径为 4 0mm的有机玻璃管内的油气两相流进行了详细的实验研究 ,实验工质为 4 6 # 机械油和空气 .油相和气相折算速度分别为 0 0 5 1～ 0 6 1 2m·s-1 和 0 0 2 4～ 5 0 6 4m·s-1 ,实验在室温下进行 .采用Lock hart Martinelli关联方法对各典型流型下的实验数据进行了整理 ,结合流动的具体情况对其中的关联参数C进行了重新定义 ,提出了基于典型流型的压力梯度计算模型 ,并对水平管内油气两相流的压降变化规律进行了分析和讨论 .
An experimental investigation on oil-air two-phase flow through a straight horizontal plexiglass pipe within 40 mm inner diameter was conducted. The superficial velocity ranges of oil and air were 0.05-0.612 m·s-1 and 0.024-50.64 m·s-1, respectively. The ambient temperature was maintained throughout the experiments. The frictional pressure drop multiplier of two-phase flow was expressed using the Lockhart-Martinelli parameter correlation in accordance with typical flow pattern, but the modification factor C in the correlations was defined afresh according to flow conditions. New predict correlations for pressure gradient in accordance with typical flow patterns were proposed and the mechanisms of pressure drop production were analyzed for each flow pattern. The proposed models are in good agreement with the experimental data.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2004年第6期907-912,共6页
CIESC Journal
基金
国家自然科学基金重大项目 (No 5 9995 462 )
面上项目 (No 10 172 0 69)资助~~
