大分子碳氢燃料层流预混火焰相似性研究

Self-Similar Behavior of Large Hydrocarbon Premixed Flamelets

在广泛的压力、温度、当量比、已燃气体掺混率和热损失率状况下,对大分子碳氢燃料/空气层流预混火焰的相似性进行理论和计算研究,成功地将层流预混火焰相似性研究和S2FT方法推广到了大分子碳氢燃料,数据压缩率至少为两个数量级以上.

Abstract The self-similar behavior of large hydrocarbon/air premixed flamelet was studied theoretically and numerically under a wide range of pressure, temperature, equivalence ratio, dilution rate and enthalpy loss. The results show that self-similar flamelet tabulation method is applicable to large hydrocarbon/air premixed fiamelet. It is found that using self-similar expressions can reduce the size of chemical database constructed from canonical laminar flames by at least one hundred times. Key words premixed ftamelet; hydrocarbon fuel; self-similar behavior