Experiment on a one-way flow of a rarefied gas through a straight circular pipe without average temperature and pressure gradients
Experiment on a one-way flow of a rarefied gas through a straight circular pipe without average temperature and pressure gradients
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无平均温度和压力梯度的稀薄气体单向流动直圆管实验
DOI：
10.1063/1.1407661
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
H. Sugimoto
中科院分区：
文献类型：
--
作者：
Y. Sone;T. Fukuda;T. Hokazono;H. Sugimoto
实验证明，在两端温度和压力相等的等径圆直管内，通过加热中间部分沿着加热，并在加热器一侧的半段内设置一个或多个搁板，可诱导出稀薄气体的单向流动。实验是在玻璃钟罩的小型真空室中进行的，流量是由小型风车检测的。单向流动是从管道的一个或多个架子的部分诱导到没有架子的部分。通过热蒸发与泊肃叶流对横截面积依赖性的差异来解释流动的机制。
It is demonstrated experimentally that a one-way flow of a slightly rarefied gas is induced in a circular straight pipe of a uniform diameter with its two ends being kept at an equal temperature and pressure by heating the middle part along the pipe and by putting up a shelf or shelves inside of a half part of the pipe on one side of the heater. The experiment is done in a small vacuum chamber of a glass bell jar, and the flow is detected by a small windmill. A one-way flow is induced from the part of the pipe with a shelf or shelves to that without it or them. The mechanism of the flow is explained by the difference of dependence on the cross sectional area between the thermal transpiration and Poiseuille flow.