| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
During impinging jet cooling or spray cooling of high temperature surface, film boiling collapses by initiating localized liquid-solid contacts on superheated surface, and rapid cooling begins. This criteria, i.e. wetting initiation condition, is very important related to steel manufacturing process and etc. This research tried to reveal this wetting initiation conditions mainly by visual observation of localized liquid-solid contact situations and local surface temperature measurements on superheated surface. As a result, under experimental conditions tested in this research, the wetting initiation temperature was mostly ranged between spontaneous nucleation temperature and Leidenfrost temperature.
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