Research on Aerodynamic Characteristics of Non-circular Cross-section Missile Based on Fluent

Based on the Fluent program software, the aerodynamic characteristics of a certain type of non-circular cross-section missile under different guidance angles, different sideslip angles, and different flying Mach numbers under combined guidance and simple guidance are simulated and calculated. The lift coefficient, drag coefficient and lateral force coefficient of this type of missile body vary with the flying Mach number, angle of attack and sideslip angle, as well as the pressure distribution and flow velocity distribution on the surface of the body. The calculated aerodynamic load parameters can be It provides basis and reference for the shape design of the missile with non-circular cross-section combined missile.