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将一台柴油机改装为缸内直喷式汽油机,采用KIVA-Ⅱ软件时缸内直喷式汽油机的两个典型工况(分层燃烧和均质预混合燃烧)的燃烧过程进行了三维数值模拟。计算结果表明,采用分层燃烧和均质预混合燃烧具有不同的火焰传播方式和特点。
A diesel engine was modified into a direct injection gasoline engine. The three-dimensional numerical simulation of two typical combustion conditions (stratified combustion and homogeneous premixed combustion) of a direct injection gasoline engine with KIVA-Ⅱ software was carried out. . The results show that the stratified combustion and homogeneous premixed combustion have different flame propagation modes and characteristics.