基于PTV法对油气水三相流流场的测定

以35^#润滑油、空气和自来水为实验介质，对垂直上升管内的油气水三相流的流场与流速进行了实验研究。在水流量为3.18 m ³·h ^-1、空气流量为0.25 m³·h ^-1、油流量为0.4 m³·h ^-1的工况下应用高速摄像机对水包油流型进行了拍摄，并跟踪气泡及油滴，对流速与流场进行了测定，同时与DPIV中的互相关法求出的流速进行了对比，实验结果表明，应用跟踪气泡及油滴的方法同DPIV的互相关法求出的流速与流场存在较小的误差，可以应用于油气水三相流中的流速与流场的测定。

Measurement of flow field of oil-air-water three-phase based on PTV

With 35^# lubricating oil, air and water as the test media, a pilot study was performed on the flow velocity and the flow field of the oil-air-water three-phase in a vertical rise pipeWhen water flow rate was 3.18 m³·h^-1, air flow rate was 0.25 m³·h^-1, oil flow rate was 0.4 m³·h^-1, high speed camera was used to get the photography of oil in water flow pattern, track bubble and drip, and measure the flow velocity and flow fieldAt the same time the velocity was compared with the one obtained by using the cross correlation method in digital particle image velocimetry technique (DPIV)The test results showed relatively small errors in the flow velocity and flow field determined by the tracking bubble and drip method and the cross correlation methodIt can be used in the measurement of flow velocity and flow field of oil-air-water three-phase flow.