ISSN 0253-2778

CN 34-1054/N

open

Characteristics of n-decane lifted flame in coflow jets at elevated temperatures

  • Characteristics of n-decane lifted flame in coflow jets at elevated temperatures and different fuel mole fractions were experimentally studied. The results show that n-decane lifted flame has a tribrachial flame structure in the flame base. After the introduction of the buoyance-induced velocity, the liftoff velocity has a good correlation with the stoichiometric laminar burning velocity. The dimensionless liftoff velocity and blowout velocity are reasonably correlated with coflow air temperature. The liftoff height of the fuel flame increases with the increase in the fuel jet velocity, and decreases with the increase in the mole fraction of the fuel at a certain initial coflow air temperature and in air temperature for a certain mole fraction.
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