| 直喷式柴油机燃烧过程的CFD研究 |
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| 引用本文： | 周斌. 直喷式柴油机燃烧过程的CFD研究[J]. 科技信息, 2011, 0(31): 93-95 |
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| 作者姓名： | 周斌 |
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| 作者单位： | 西昌学院汽车与电子工程学院; |
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| 摘 要： | 本文应用三维CFD仿真软件AVL FIRE对CY4102直喷式柴油机的燃烧过程进行了数值模拟计算,再现了缸内流体的运动过程、湍流参数的变化、燃油粒子的空间分布、燃烧过程的进展状况、传热过程以及缸内温度场的分布等,结果表明:随着喷油提前角的增大,滞燃期变长,最高平均温度、压力和放热率峰值均增大,且其对应的曲轴转角均有前移趋势,同时氮氧化合物(NOX)的排放增加,碳烟(Soot)的排放减低;燃烧室速度场和柴油浓度场随曲轴转角的变化不明显。
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| 关 键 词： | 柴油机 燃烧 数值模拟 性能 |
Simulation Study on Combustion Process DI Diesel Engine |
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| ZHOU Bin. Simulation Study on Combustion Process DI Diesel Engine[J]. Science, 2011, 0(31): 93-95 |
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| Authors: | ZHOU Bin |
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| Affiliation: | ZHOU Bin(School of Agricultural Sciences of Xichang College,Xichang Sichuan,615013) |
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| Abstract: | This paper applied of 3D CFD simulation software AVL FIRE on CY410 direct-injection diesel engine' combustion process to do numerical simulation,reconstructed the fluid flow process,the charge of the turbulence,the space distribution of the fuel particles,combustion process,heat-transfer process and temperature field in the cylinder.The results show that: with the increase of the fuel injection advance angle,the ignition delay period become longer,the maximum temperature and pressure and heat release rate a... |
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| Keywords: | Diesel Engine Combustion Numerical simulation Performance |
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