油水两相流超声测试机理仿真建模

摘要

To get effective informations of the flow parameters in the dual continuous oil-water two-phase flow, the ultrasonic testing mechanism of oil-water two-phase flow was studied by simulation modeling technique. By establishing a numerical simulation model which could reflect the actual flow condition, the influence of ultrasonic frequency and particle size on the ultrasonic propagation was discussed. The relationship between ultrasonic attenuation and oil phase content was analyzed and the mode of ultrasonic action was also analyzed. The results show that the simulation model can effectively describe the mechanism of ultrasonic testing in oil-water two-phase flow.%针对油水两相流双连续分散流动条件下流动参数的有效获取问题,采用仿真建模技术,对油水两相流超声测试机理进行研究.通过建立反映实际流动状况的数值仿真模型,讨论超声频率和离散相粒径尺度对超声传播的影响,分析双连续分散流中超声衰减与油相含率之间的关系和超声的作用方式.研究结果表明:所建立的仿真模型可有效描述油水两相流超声测试方法机理.