1D/3D coupling analysis of engine cooling system

In this paper, the FLUENT and KULI soft wares were used to analyze the cooling performance on the radiating module of the cooling system for a heavy vehicle by 1D/3D coupling simulation. According to the analysis, the cooling performance of the existing engine cooling system for heavy vehicles is declined by the gap between the intercooler and radiator in the cooling system. Moreover, the structure of an integrated cooling system was proposed. The wind tunnel experiment model was built in the FLUENT software to analyze the original cooling system and the integrated cooling system by three-dimensional simulation. Then the obtained velocity matrix from 3D simulation was imported into the KULI software to compare the cooling performances of the original system and the integrated system. It was found that the cooling performance of the integrated cooling system is superior to that of the original cooling system.