Abstract
In order to enhance the cooling performance and aerodynamics of a vehicle, a front-end cooling structure is improved with Computational Fluid Dynamics(CFD) and optimization algorithm. Multi-objective optimization was implemented and optimal solutions that enhanced both the cooling performance and aerodynamics were obtained. For example, one selected design from optimal solutions shows that the airflow velocity passing through the heat exchanger increased by 14% compared with the baseline while maintaining its aerodynamic performance. To verify optimization results, the vehicle test was carried out with the prototype front bumper based on the selected design in the optimal solutions. The results show that the shape-optimized bumper is effective to improve the cooling and aerodynamic performance.
