| Budget Amount *help |
¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2015: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Outline of Final Research Achievements |
The predictions of flame quenching induced by flame-wall interaction (FWI) are of great importance for development of downsized automotive combustion engines and gas turbine combustors. In the present study, toward a precise modeling for the wall chemical quenching effect in FWI, radical adsorptions on different wall surfaces have been evaluated with MEMS, plasma, molecular beam and combustion measurement/simulation techniques. Firstly, sensitivities of adsorption rates for each radical species to the chemical effect are examined through a series of numerical simulation with detailed gas/surface chemistry. Based on the sensitivity analysis, near-wall H-atom, which is the most influential radical on the flame characteristics, is measured through two-photon absorption laser induced fluorescence in a narrow planar channel flame. In addition, for the first time, H-atom adsorptions are directly quantified by using a newly-developed plasma molecular beam scattering apparatus.
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