直喷式柴油机燃烧过程模拟与分析(一)

Simulation and Analysis for Combustion of D.I.(Direct-Injection)Diesel Engines(1)

利用KIVA-Ⅱ程序模拟计算直喷式柴油机燃用柴油时缸内的燃烧过程,如混合气形成过程、缸内温度场、主要有害物质NOx的生成浓度分布等。通过对直喷式柴油机燃用柴油时燃烧过程的模拟计算与分析,对模拟燃用绿色能源—二甲醚的燃烧过程提出了一些建议。

The combustion process in the combustion chamber was simulated by use of KIVA-Ⅱ code for direct-injection diesel engine.The fuel vapor quantity and combustion temperature and NOx concentration were calculated through changing the size of the nozzle hole.Some proposals were raised for D.I.diesel engine operated with green alternative fuel-dimethyl ether.