【摘 要】
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本文介绍了在一维砂槽模型中模拟柴油—水两相流在不同粒径玻璃砂多孔介质中运动的试验研究 .研究结果表明 ,柴油—水两相流中 ,残余油饱和度与介质粒径成正比 ,而残余水饱和
【机 构】
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清华大学水利水电系!北京100084,清华大学水利水电系!北京100084,日本名古屋大学理工综合研究中心
论文部分内容阅读
本文介绍了在一维砂槽模型中模拟柴油—水两相流在不同粒径玻璃砂多孔介质中运动的试验研究 .研究结果表明 ,柴油—水两相流中 ,残余油饱和度与介质粒径成正比 ,而残余水饱和度与介质粒径成反比 ;由于界面张力的存在 ,油—水界面间存在过渡区 ,对于粒径大于 0 5mm的多孔介质 ,在过渡区上边缘呈现明显的突变界面特征 .研究中尝试对柴油—水两相流动用CCD摄像机摄像 ,并通过图像分析的方法得到了油—水两相流的饱和度分布 ,从而使多相流中饱和度的量化分析成为可能 .
In this paper, the experimental study on the simulation of diesel-water two-phase flow in porous glass frit with different particle sizes was presented in one-dimensional sand tank model.The results show that the residual oil saturation in diesel-water two- And the residual water saturation is inversely proportional to the particle size of the medium. Due to the interfacial tension, there is a transition zone between the oil-water interface. For the porous media with a diameter of more than 0 5mm, the upper edge of the transition zone shows obvious mutations In this study, we attempted to take a CCD camera image of diesel-water two-phase flow and obtained the saturation distribution of oil-water two-phase flow through the image analysis method, which made it possible to quantitatively analyze the saturation in multi-phase flow .
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