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

KANG Qi; LIU Jianmin; WANG Pukai; LIU Yanbin; DONG Yi

doi:10.3969/j.issn.1001-2222.2019.01.014

Vehicle Engine ›› 2019, Vol. 0 ›› Issue (1) : 87-92. DOI: 10.3969/j.issn.1001-2222.2019.01.014

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

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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%.

Key words

armored vehicle / engine compartment / airflow / heat transfer / simulation

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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