Hydrogen_air turbulent flame propagation in the presence of microdroplets

31st International Conference on Equations of State for Matter

Medvedev, S.P.^1 ; Khomik, S.V.^1 ; Maximova, O.G.^1 ; Agafonov, G.L.^1 ; Mikhalkin, V.N.^1 ; Betev, A.S.^1

Semenov Institute of Chemical Physics, Russian Academy of Sciences, Kosygina 4, Moscow

119991, Russia^1

关键词: Flame propagation;    Hydrogen-air mixture;    Rapid expansion;    Turbulent combustion;    Turbulent flame;    Turbulent intensities;    Vapor condensation;    Vapor volume fraction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012091/pdf
DOI  :  10.1088/1742-6596/774/1/012091

来源: IOP

【 摘 要 】

A technique has been developed for evaluating turbulent combustion characteristics in the presence of microdroplets obtained by vapor condensation in the course of rapid expansion. Experiments have been conducted to visualize spark-initiated flame propagation through hydrogen-air mixtures at various turbulent intensities, water-vapor volume fractions, and microdroplet concentrations.The influence of microdroplet suspensions on iginition and flame propagation is investigated.