Numerical Simulation of External Flow-Field of a Car Body Based on CFD

Abstract With the rapid development of computer technology in recent years, this paper explores feasibility applying computational fluid dynamics (CFD) to study external flow-field automobile body. The numerical solution provides pressure and velocity distribution car body, such as aerodynamic field field, order obtain information resistance, lift, lateral force related torque, which can be further used guide design automobile. comparison between simulation results experiments shows that CFD plays a strong guiding role shape structure.