机构地区: 浙江大学机械与能源工程学院动力机械及车辆工程研究所
出 处: 《汽车工程》 2007年第9期796-799,811,共5页
摘 要: 对EQ1118GA圆顶车厢运输车进行外流场的数值模拟,通过对模型的表面压力和流场特性的分析,研究EQ1118GA运输车气动阻力产生的主要原因,以此为依据为优化其空气动力学性能设计了4种不同的导流罩,并分别对它们进行数值模拟计算,得到具有最佳减阻效果的导流罩。 A 3D numerical simulation on the exterior flow field of a round-roof van (EQlll8GA) is conducted based on a model set up. By analyzing the surface pressure and the flow field characteristics of the model, the main causes of its aerodynamic drag are studied. Four types of spoilers are designed and simulated to optimize the aerodynamic performance of the van. The optimized spoiler with best effect of drag reduction is obtained.