| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
In a lean turbulent combustion field, local quenching occurs and it will lead to reduce burning rate and will make worse exhaust gas characteristics. In the present study, a disk shaped premixed flame is formed and a pulsating jet impinges against premixed flame. Then local quenching occurs that has two dimensional and reproducible. Using this experimental field, extinction and recovery mechanisms of that local quenching have been studied experimentally. As the result, flame strain rate is the trigger of local quenching and the vortex that is formed at flame edge plays important role for recovering from local quenching.
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