301 Numerical Analysis on End-Gas Auto-Ignition Attended with Flame Propagation in Closed Chamber

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  • 301 閉鎖空間における火炎伝播に伴うエンドガス自着火に関する数値解析(OS2 エンジン技術の高度化に向けた先端研究,研究討論セッション)

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Numerical analysis on the auto-ignition of end-gas accompanied with strong pressure wave in closed container were carried out. To capture precisely the pressure wave initiated by auto-ignition of end-gas, the numerical scheme for compressible reactive fluid with high time and space resolution was used. Detailed chemical kinetics were taken into account in the numerical code. The role of the pressure wave on the onset of the auto-ignition of the end-gas found out. The knocking intensities were also evaluated and discuss the characteristics of the pressure wave fluctuation intensity as the function of the fraction of the auto-ignited premixed gas.

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