| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
The objectives of the present study were to investigate the gas-liquid interfacial phenomena in the T-shaped microchannel for generating micro-meter diameter bubbles, and examine the heat transfer characteristics of the microscale phase-change phenomena in next generation semiconductor devices. For the investigation of the gas-liquid phenomena, we developed the visualizing technique for the microbubble generation process and the measuring technique for the velocity fields of ultra-high speed microchannel flows. The results indicated that the inertia force was important factor though the Reynolds number was small, and 5 micro-meter diameter bubbles were produced by using the T-shaped microchannel with ultra-high speed flows. For the examination of the microscale phase-change phenomena, we evaluated the relationship between the heat transfer characterization and the pump flow rate, and quantitatively obtained the pump flow rate required for the removal of the high heat flux.
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