Notice of RetractionResearch on aerodynamic drag reduction of heavy commercial vehicle

Computational Fluid Dynamics (CFD) simulation for two types of heavy commercial vehicle (one with aerodynamic drag reduction devices and the other without) is performed to investigate their aerodynamic characteristics in this paper. Through the analysis of airflow and pressure distribution on the full vehicle surface, the drag reduction mechanism and the influence of these drag reduction devices on commercial vehicle's aerodynamic characteristics are discussed. The comparison of CFD results with wind tunnel results reveals the same trends of the aerodynamic characteristics. The methods to improve the aerodynamic characteristics of heavy commercial vehicles are proposed.