| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Research Abstract |
During impinging jet cooling of high temperature surface, film boiling collapsed by initiating localized liquid-solid contacts on superheated surface. 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 by visual observation and numerical simulation of localized liquid-solid contact situations on superheated surface. As a result, in case of single crystal sapphire surface which has relatively high thermal diffusivity, the wetting initiaion condition was almost decided by "a certain surface temperature". However, in case of quartz glass which has relatively low thermal diffusivity, the condition was not decided only by the surface temperature, and further research will be necessary.
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