装甲车辆动力舱空气流动与传热仿真研究

康琦; 刘建敏; 王普凯; 刘艳斌; 董意

doi:10.3969/j.issn.1001-2222.2019.01.014

车用发动机 ›› 2019, Vol. 0 ›› Issue (1) : 87-92. DOI: 10.3969/j.issn.1001-2222.2019.01.014

栏目

装甲车辆动力舱空气流动与传热仿真研究

康琦^1,2，刘建敏¹，王普凯¹，刘艳斌¹，董意¹

作者信息 +

Simulation Study on Airflow and Heat Transfer of Engine Compartment for Armored Vehicle

KANG Qi^1,2,LIU Jianmin¹,WANG Pukai¹,LIU Yanbin¹,DONG Yi¹

Author information +

文章历史 +

摘要

利用Pro/E软件建立了装甲车辆动力舱三维模型，并将其导入到GTCool 3D软件中转化为障碍物。利用GTCool 3D软件建立散热器和风扇模型并建立动力舱流动区域，然后将三维模型离散得到一维仿真模型。对标定工况下动力舱空气流动和散热器传热进行了分析，并分析了散热器位置高度对动力舱空气流动与传热的影响。结果显示：动力舱内空气流动不均匀，进气百叶窗、散热器、变速箱等部件对空气流动影响较大；散热器冷却散热能力分布不均匀，前两个流程冷却散热效果较好，第3个流程冷却散热效果较差；散热器高度每增加20 mm，流进散热器的空气流量平均增加0.523 m³/s，平均增幅为7.32%，散热器的散热量平均增加11.43 kW，平均增幅为3.69%。

Abstract

A threedimensional model of engine compartment for an armored vehicle was built by using Pro/E software and imported into the GTCool 3D software to be transformed into obstacles. The GTCool 3D software was used to establish the radiator and fan model and build the flow area of engine compartment. Then the 3D model was discretized into a large number of small volume blocks to obtain onedimensional simulation model. The air flow of engine compartment and heat transfer of radiator under the rated conditions were further analyzed,and the effects of radiator location height on the air flow and heat transfer of engine compartment were analyzed. The results show that the air flow in the engine compartment is uneven. Air inlet louvers, radiators, gearboxes and other components have a great influence on the air flow. The distribution of the radiator cooling capacity is also not uniform, the first two processes have good effects while the third process has poor cooling effects. For a 20 mmincrease in radiator location height, the air flow entering into the radiator increases by an average of 0.523 m³/s that is equivalent to an average increase of 7.32% and the radiator heat dissipation increases by an average of 11.43 kW that is equivalent to an average increase of 3.69%.

导出引用

康琦，刘建敏，王普凯，刘艳斌，董意. 装甲车辆动力舱空气流动与传热仿真研究[J]. 车用发动机. 2019, 0(1): 87-92 https://doi.org/10.3969/j.issn.1001-2222.2019.01.014

KANG Qi,LIU Jianmin,WANG Pukai,LIU Yanbin,DONG Yi. Simulation Study on Airflow and Heat Transfer of Engine Compartment for Armored Vehicle[J]. Vehicle Engine. 2019, 0(1): 87-92 https://doi.org/10.3969/j.issn.1001-2222.2019.01.014