【摘要】 为了提高和改善整车的热管理性能,文章创新性的应用CFD数字风洞的仿真分析方法,结合热量交换计算分析工具和环境舱热管理试验,对某款轿车进行发动机舱热流场及温度场仿真分析优化与试验验证,增加了有效的冷却风量,降低了机舱内整体和局部高温热害风险,进气温度降低13℃左右,冷却水温度降低4.5℃,达到了项目先期设定的热管理性能开发目标。更多还原

【Abstract】 The purpose of this paper is to improve vehicle thermal management, CFD numerical wind tunnel is applied innovatively to simulate and optimize fluid and temperature fields of under-hood of a car and to validate by test combined with heat exchange calculation tools and thermal environmental wind tunnel test, improving the cooling air effectively, reducing the thermal risk and the intake air temperature inside the under-hood. The temperature of intake air was lowered 13 ℃, the temperature of cooling water was lowered 4.5 ℃, reaching the vehicle thermal management development target which is set forward.更多还原