将发动机多维CFD程序KIVA-3V与化学动力学程序CHEMKIN Ⅲ及DETCHEM相耦合,模拟了缝隙区催化燃烧对HCCI发动机排放特性的影响.利用此模型分析了活塞冠侧面催化剂铂涂层对HCCI发动机缸内温度场及HC浓度场的影响,结果表明当活塞冠侧面存在催化剂时,与缸内无催化燃烧相比,HC、CO的排放得到很大程度降低,但Nox的排放将略有升高.
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