| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Outline of Final Research Achievements |
When a solid surface at a temperature much higher than boiling temperature of a liquid is quenched by the liquid, it is very important whether the surface can be stably wetted by the liquid or not, to understand heat transfer characteristics. The reason is that the heat transfer for the wetted surface becomes about 100 times larger than that for the instable wetted one. A new technique to measure whether the stable wetted condition was reached or not, had been developed. In the technique, a couple of temperature sensors which are installed at 0.005 mm below the surface can measure a temperature change at a frequency of 100 KHz. The surface temperature and heat flux can be accurately calculated by applying newly developed inverse solution to the measured temperature. A homogeneous nucleation theory had also developed to explain a start of stable wetted condition, predicting its condition correct.
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