Control Performance, Aerodynamic Modeling, and Validation of Coupled Simulation Techniques for Guided Projectile Roll Dynamics.

摘要

This report describes a computational study to understand the roll behavior of a canard-controlled projectile. Numerical computations were performed for this projectile with roll control maneuvers using advanced computational fluid dynamics and coupled aerodynamics/rigid body dynamics techniques. Roll control algorithms were formulated based on aerodynamic model assessment and parameter estimation. Coupled techniques were validated against wind tunnel (WT) experiments for roll control maneuvers. Overall, computed roll control results matched well with the WT test data; this indicated that the coupled calculations seem to capture the relevant physics observed in the experiment.