The combustion process of a dual-fuel engine was calculated by characteristic timescale model (CTM), eddy breakup model (EBM), and coherent flamelet model (CFM) to verify the accuracy of the combustion models. The results show that the peak pressure calculated by EBM is 2.78 % higher than the experimental value, and the peak pressure calculated by CFM is closest to the experimental value. The EBM is the most accurate for CO₂ emissions. The deviation of CO emissions from the experimental values calculated by CTM is the smallest (< 1 %). The NO_x emission calculated by CTM is good agreement with the experimental value at low speed, and EBM is in best agreement with the experimental value at high speed. The hydrocarbon emission calculated by CFM is the most accurate, with a deviation of less than 0.6 %.

中文翻译：

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双燃料发动机燃烧过程不同燃烧模型的数值研究

采用特征时标模型（CTM）、涡流破碎模型（EBM）和相干火焰模型（CFM）对双燃料发动机燃烧过程进行计算，验证燃烧模型的准确性。结果表明，EBM计算的峰值压力比实验值高2.78%，CFM计算的峰值压力与实验值最接近。_{EBM 对于 CO 2}排放量最为准确。CTM计算的CO排放量与实验值的偏差最小(<1%)。CTM计算的NO _x排放量与低速时的实验值吻合较好，EBM计算的NO x 排放量与高速时的实验值吻合最好。CFM计算的碳氢化合物排放量最为准确，偏差小于0.6%。