CAJ | 학술논문

标定工况下，对某16缸机车用柴油机进行联合仿真。利用GT—cool软件对柴油机整体进行一维仿真，得到冷却系统各个管路和机体的流量、温度和压力等数据，然后将一维仿真的结果作为边界条件，采用ANSYSCFX软件对冷却效果最差的第8缸进行冷却水三维仿真，得到此缸冷却水的内部流场、温度场和压力场，最后得出结论：排气管冷却水道两侧棱角处温度过高，存在流动死区，需进行冷却优化。实例表明，联合仿真可用于工程计算，能满足精度要求。
표정공황하，대모16항궤차용시유궤진행연합방진。이용GT—cool연건대시유궤정체진행일유방진，득도냉각계통각개관로화궤체적류량、온도화압력등수거，연후장일유방진적결과작위변계조건，채용ANSYSCFX연건대냉각효과최차적제8항진행냉각수삼유방진，득도차항냉각수적내부류장、온도장화압력장，최후득출결론：배기관냉각수도량측릉각처온도과고，존재류동사구，수진행냉각우화。실례표명，연합방진가용우공정계산，능만족정도요구。
A co-simulation is done on one 16-cylinder locomotive diesd engine under rated working conditions. This paper gets data on flow rate, temperature and pressure of cooling system and cylinder block using GT - cool software and then uses CFX software gives a 3D-simulation on the cooling water of the eighth cylinder which is worsen cooled to get internal flow field, temperature field and pressure field. The results shows that temperature is very high in two edges of cooling passages in the exhaust manifold and there is a dead cooling area, so its cooling needs to be optimized. The actual examples have indicated that co -simulation method might be applied in practical engineering.