| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Research Abstract |
In order to enhance the fuel mixing in a scramjet engine, a new method of fuel mixing is suggested. This method is based on the method in which cavity-induced flow oscillation is utilized. The geometry of the cavity is improved so that the three-dimensional flow field is produced. This three-dimensional flow advantages the mixing enhancement. In order to simulate the fuel injection, the nitrogen gas which contains a small amount of acetone is injected into the supersonic flow. The mixing of the injected gas is visualized by the laser-induce acetone fluorescence. As a result, the mixing enhancement by the improved cavity is found to be stronger than that by the conventional rectangular cavity.
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