A novel aerodynamic modeling method for an axisymmetric missile with tiny units

Abstract

This article investigates the aerodynamic modeling problem of an axisymmetric missile with tiny units. Three aerodynamic force models for an axisymmetric air-to-air standard model missile are established. The mathematical model of trigonometric series model, response surface model, and kriging model for roll moment coefficients are developed. An error reduction approach is presented to determine the configuration of the proposed aerodynamic force models. In this approach, the minimum residual sum of the square criterion is acquired to determine the desired sample data point. Moreover, the modeling accuracy of the three models is further discussed. Finally, a model missile with four control surfaces and a cable cover was applied to test the proposed modeling approach in a transonic wind tunnel named as CARDC FL-24.