| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
In the present study, the characteristics of supersonic flows in a rectangular micronozzle were investigated using the LIF (Laser-Induced Fluorescence) and MTV (Molecular Tagging Velocimetry) techniques, both of which are a non-intrusive technique for measuring supersonic flows. The results demonstrated that the supersonic core of the jet issuing from the micronozzle is extended remarkably and becomes 60~70 times longer than the nozzle exit height at a certain operating condition. The results also demonstrated that the phenomenon peculiar to supersonic micro flows occur in the micronozzle; that is to say, the density distributions measured in the nozzle cannot be explained by the concept that has been believed.
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