B154 40眼カメラを用いた予混合火炎の瞬間輝度分布のスキャンレス三次元CT計測(OS-5 燃焼研究における可視化,計測およびモデル化手法の進展I)

概要

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In present study, the instantaneous three-dimensional distribution of the chemiluminescence light emission image of turbulent premixed "blue" flame is captured as a fuel consumption rate distribution by a newly proposed technique; "instantaneous three-dimensional scanless computerized tomography (3D-CT) technique" with a custom-made multi (40)-lens camera. The results for a propane-air fuel-rich-premixed turbulent flame show that the flame front is observed to be a thin wrinkled luminous region of 0.6mm in thickness and that the cusps observed in horizontal cross-sections correspond to ridges of the three-dimensional flame front. It is also found that the luminosity distribution is quenched along the ridges. The maximum value of local fuel consumption rate is estimated to be 0.23 g/s/cm^3.
社団法人日本機械学会の論文
2005-11-02