风扇蜗壳高度对装甲车辆冷却风道空气流动的影响  

Influence of Fan Volute Height on Cooling Duct Airflow of Armored Vehicles

作　　者：骆清国[1] 喻虎[1] 冯帅[1] 冉光伟 

机构地区：[1]装甲兵工程学院机械工程系,北京100072 [2]上汽通用五菱汽车股份有限公司,柳州545007

出　　处：《车辆与动力技术》2013年第4期6-10,共5页Vehicle & Power Technology

基　　金：国防预研项目(40402010103)

摘　　要：为有效降低装甲车辆封闭式冷却风道的空气流动阻力,利用计算流体动力学技术进行数值模拟,通过GT-Suite软件建立了冷却风道的仿真模型,并用GT-Cool模块离散了装甲车辆冷却风道的3D模型,研究了蜗壳高度的变化对冷却风道主要设计参数之间的影响,指出蜗壳高度小于257 mm时,风道阻力过大,冷却风道设计不合理.在对风扇蜗壳进行改进后,低温散热器进口截面处空气平均流速增加.In order to efficiently reduce the airflow resistance in a closed cooling duct of an armored vehicle, the numerical simulation is accomplished by means of computational fluid dynamics. A simulation model of the cooling air duct is built in GT-Suite, and the 3D model is dispersed with the help of GT-Cool module. The influence of the height changes of the fan volute is studied on the main design parameters of the cooling air duct. The results show that the airflow resistance becomes too big when the height of the volute is less than 257 millimeter. The average velocity of the airflow at the inlet section of the low temperature radiator increases after redesigning the structure of the fan volute.

关 键 词：冷却风道 GT—Cool 蜗壳 仿真计算 

分 类 号：TJ810.2[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]