Numerical Simulation on the Combustion Characteristics of Armored Vehicle Diesel in Plateau Area
(0) A simulation model on working process of certain armored vehicle turbocharged diesel engine is proposed with Hiroyasu combustion model.Then the combustion characteristics of the diesel in 4km altitude is calculated. The combustion process is improved via adjusting optimum advanced injection angle(θi) which performed in plateau area.The results show: when the altitude is from 0m to 4000m, the center of gravity for heat release rate is delayed 7℃A,HRRmax (maximum value of Heat Release Rate) reduces 0.009KJ/℃A, pmax (maximum value of cylinder Pressure ) reduces1.6MPa,Tmax(maximum value of combus -tion temperature ) increases 220℃ above. When θi is advanced during possible scope, HRRmax increases 0.008KJ/℃A,pmax increases 1.0MPa,Tmax increase 150℃. In view of the restriction of the pmax and the maximum increase rate of p, the optimum θi is fixed on to advanced 4℃A. The simulation results supply a research foundation for the improvement of diesel performance in Plateau.
Plateau Area Armored Vehicle Diesel Advanced Injection Angles Combustion
Lu-Feng GUO Meng-chao GUO Guang-jun
Department of Mechanical Engineering, Academy of The Armored Force Engineering; Beijing 100072,China
国际会议
沈阳
英文
607-610
2011-11-22（万方平台首次上网日期，不代表论文的发表时间）