Some Thoughts About the Aerodynamic Pressure Center of Automobile

This paper introduces some thoughts about the aerodynamic pressure center of automobile. Firstly, the simplification to a center point of the force system in space is introduced, and then the force on the vehicle surface is analyzed. The aerodynamic pressure center is verified by the results of the wind tunnel tests of real vehicles and CFD simulation results. At last, the equations of the central axis of the force screw and the central line of the wind pressure are derived, and the CFD simulation results are used to verify the correctness of the theory.