Research on Quantitative Examination of Gas Entrainment Rate into Liquid from Free Surface by Vortex

盖气体夹带到钠冷却剂中是日本正在设计阶段的快增殖堆需要研究的问题之一。本研究的目的是定量地检测涡旋将气体从自由表面卷吸到液体中的速率。试验液体为水和硅胶。试验容器的高度为250 mm，直径为100 mm。测试流体切向流入测试容器，然后从测试容器底部的出口孔离开，形成中空涡流。通过改变实验容器中的水流量和高度来测量气体夹带率。

The cover gas entrainment into sodium coolant is one of problems to be examined for the fast breeder reactor that is in the designing stage in Japan. The objective of the present study is to quantitatively examine the gas entrainment rate from the free surface into liquid by a vortex. Test fluid was water and silicone. The height and the diameter of the test vessel were 250 mm and 100 mm, respectively. The test fluid flowed into the test vessel tangentially and left from the outlet hole at the bottom of the test vessel, and then the hollow vortex was formed. The gas entrainment rate was measured by changing the water flow rate and also the height in the test vessel.