1204 対向流場に形成された非予混合乱流火炎の観察(GS-6 燃焼(乱流・拡散・火炎))

概要

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In order to study the interaction between turbulence and combustion, we observed the flame structure of non-premixed flames stabilized in an opposed jet burner, particularly paying a special attention on its similarity to that of premixed flames. Due to very rapid mixing in an intense turbulent field, flame appearances and fluctuating properties of the two types of flames resembled each other. Therefore, we will be able to simulate the fine flame structure of highly preheated air combustion in premixed type by a turbulent non-premixed flame of rapid mixing type. It suggests that the non-premixed combustion using highly preheated air can be a substitute for highly preheated premixed flames as far as the mixing time is shorter than the ignition delay. We plan to observe the effect of the change in chemical time on the flame structure by diluting pre-heated air with nitrogen.
一般社団法人日本機械学会の論文
2001-03-16