| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
In order to reliably ignite the fuel spray using laser beam, it is necessary to clarify the ignition mechanism in the fuel spray. In this study, we considered that the fuel droplet size and density of the fuel droplets around the ignition position and the behavior of the droplets affect the propriety of ignition. As a result, the effects of fuel droplet size and density on the success or failure of ignition could not be confirmed. It is known that a donut-shaped high temperature area is formed in laser-induced breakdown ignition, but ignition tends to fail when such a flow occurs. It was found that this flow needs to be actively controlled when the spray is ignited.
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