Research on Vehicle Aerodynamics and Thermal Management Based on 1D and 3D Coupling Simulation

In order to ensure the full heat dissipation of exchangers, opening grille should be large, which increases wind drag whole vehicle. Most research on only focuses its impact engine compartment; there is little influence performance thermal management system, because it difficult solve real-time data interaction different dimensional models. So we established 1D and 3D strong coupling model. The biggest difference from other models that can use interfaces reserved by two kinds software realize interaction, simultaneously analyze flow field temperature components. model used study three balance conditions. results show heat-sinking capability cooling system worst under climbing condition; refrigeration capacity air-conditioning idling condition. According evaluation index priorities, determine simulation process. this article, first upper gradually closed; then field, indexes are studied through obtain analysis grille; based results, lower closed, obtained in same way. final premise ensuring performances air conditioning coefficient reduced 17.5 counts compared with original