Premixed Turbulent Flame Configuration of Lean Hydrogen/Oxygen/Dilution Gas

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  • D112 水素-酸素-希釈ガス希薄予混合乱流伝ぱ火炎の火炎形状特性

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The present study is to clarify the relationship between the turbulent burning velocity and the turbulent flame configuration of hydrogen/oxygen/dilution gas mixtures, where the dilution gas is changed to N_2,Ar, CO_2,He keeping the laminar burning velocity nearly the same value. A laser tomography technique is used to obtain the flame shape. In the weak turbulence, the surface area of turbulent flame is found to be dependent slightly on the kind of dilution gas. The local burning velocity characteristics are discussed based on the local flame front configuration obtained by the flame tomograms.

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