| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
We experimentally investigated behavior of liquid film which was formed by a droplet train impact. First, we focus on the diameter of hydraulic jump formed on a circular plate. As a result, the hydraulic jump was observed under the smaller water flow rate condition compare to the liquid column impact. And the jump diameters for the case of droplets impact were greater than that of liquid column impact.
Second, we found that liquid infiltration into such small holes is promoted by the impingement of droplet train. Our observations illustrate the importance of the oscillation and deformation of the gas liquid interface inside the holes following droplet impingement. Intermittent droplet impingement causes small droplets or large interface deformations to form, and then the gas column inside the hole becomes separated. This separated gas column is then gradually ejected.
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