Aerodynamic Optimization of Cooling Airflow of a Production Vehicle

Abstract

As the demand for improved fuel economy and environmental protection increases, the vehicle development has to leave no means untried to beyond the past. Aerodynamic drag reduction has become more critical. One of the important factors is cooling airflow, its contribution accounts for up to 10% of total vehicle drag. Cooling airflow is affected by a large number of factors, such as engine cooling, engine room arrangement, inlet and outlet locations. As an advanced research, AOCA (aerodynamic optimization of cooling airflow) plan is engaged to improve the cooling air volume flow and efficiency from aerodynamics. It tries to optimize current design and manufacture, collect feasible and flexible solutions for cooling issues. In this paper, two aspect results are summarized with full of referential significance.