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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Hydrodynamic Analysis of Density Oscillator
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Hydrodynamic Analysis of Density Oscillator

机译：密度振荡器的流体动力学分析

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摘要

A cylindrical vessel, in which a tube is installed vertically in its base, is mounted in a reservoir. When heavy fluid is placed in the cylindrical vessel and light fluid in the reservoir, at first, the downflow of heavy fluid and the upflow of light fluid through the tube take place. This oscillation is repeated, and this system is called a density oscillator. In our research study, saltwater and fresh water are used as heavy and light fluids respectively. A theory based on the Hagen-Poiseuille flow approximation in a tube is constructed on the basis of the mechanism of the rise and fall of the saltwater surface. Our theory agrees well with experimental data. It is confirmed experimentally that the mean velocities of saltwater and fresh water in the tube immediately before the fall of the saltwater and the rise of the fresh water begin, are proportional to the density difference between saltwater and fresh water and inversely proportional to saltwater viscosity.
机译：在容器中垂直安装有圆筒形容器的圆筒形容器。首先，当将重液体放入圆柱形容器中并将轻流体放入容器中时，首先发生重液体的下降流和轻流体通过管的上升流。重复这种振荡，该系统称为密度振荡器。在我们的研究中，盐水和淡水分别用作重油和轻油。基于盐水表面上升和下降的机理，建立了基于哈根-泊瓦伊管近似流动的理论。我们的理论与实验数据非常吻合。实验证实，紧接在盐水下降和淡水开始上升之前，试管中盐水和淡水的平均速度与盐水和淡水之间的密度差成正比，与盐水粘度成反比。

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