| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
We investigated the effect of the liquid properties on an unsteady translational motion and an atomization behavior of an acoustically levitated droplet in order to actively control a noncontact levitated droplet in air. In this study, pure water, ethanol (effect of the surface tension), and glycerin (effect of the viscosity) were used as test fluids to systematically clarify the effect of liquid property on the levitation stability of droplet. The model of the unsteady translational motion was proposed based on a high-speed observation of a droplet behavior and a measurement of a sound pressure field. We also succeeded an observation of an interfacial instability and atomization process of a levitated droplet at a high spatio-temporal resolution. The experimental data was compared with the existing theory for considering the mechanism of an atomization of an acoustically levitated droplet.
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