不同倾角管中油水两相流研究进展

叙述了近年来国内外对油水两相流流型及流型转化的研究状况,介绍了在垂直管、倾斜管及水平管中的流型和倾角对流型存在范围的影响,对于不同倾角管中油水两相流流型进行了对比。由于倾角和重力的作用,倾斜管中的流型有很大差别,油水两相流大体上可分为分散流和分层流两大类流型。分析了分散流型和分层流型转化的影响因素、转换准则及倾角对转换准则的影响,并对几种转化准则进行了对比。这些转化准则大多针对水平管或垂直管,而对于倾斜管的转换准则,在理论和试验上还需要进一步研究,这也是油水两相流今后的研究方向。

Progress in Oil-Water Two Phase Flow in Inclined Pipelines

The study on flow patterns and patterns transition in recent years is summarized. Flow patterns in vertical, inclined and horizontal pipe are introduced. The effect of inclination angles on the region of flowing patterns is presented. The flow patterns with different inclination angles are compared. Since gravitation and inclination angles, the flow patterns in inclined pipes are different from those in vertical pipes. Oil water two-phase flow is classified into tow categories,segregated flow and dispersed flow. The transitions criterion in segregated flow and dispersed flow, influent factor of transition and the effect of inclination angle on transition criterion are introduced, transition criterions are also compared. These transition criterions are completed in horizontal or vertical pipes. Criterion in inclined pipes need to be studied further,it is one of the research direction in oil-water flow for the further.