| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
In order to clarify the effects of flame and turbulence scales on premixed combustion characteristics, turbulent combustion experiments were carried out using nozzle burners being outlet diameters of 14 mm, 20 mm, 40 mm and 60 mm under various mixture pressure conditions. Flame front structures were observed by OH-PLIF. The flame front wrinkling increased with an increase in burner outlet diameter. The turbulent burning velocity increased with an increase in turbulence intensity. In addition, it was clarified that the turbulent burning velocity also increased with an increase in the burner outlet diameter. Since the turbulent burning velocity of spherically propagating premixed turbulent flame increases with an increase in flame scale during flame propagation, the similar trend was also observed in the burner stabilized turbulent flame.
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