| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
|
|---|
| Outline of Final Research Achievements |
Freely downward propagating flames in a one end closed combustion tube with diameter of 50mm were investigated as a fundamental of combustion instability in a gas turbine combustor. It was found that some different modes of combustion instability appeared depending on the fuel composition, burning velocity, equivalence ratio, composition of balance gas, and Le. Particularly combustion instability and resulting intense pressure fluctuation were found with presence of coherent corrugated structure at the propagating flame front. Such combustion instability could be caused by combination of primary pressure fluctuation induced by pressure coupling and presence of flame front disturbance.
|
