Prediction of Nonlinear Rolling and Magnus Coefficients of Cruciform-Finned Missiles

摘要

A new method based on strip and slender-body theories has been developed to predict the aerodynamic roll andnwing-inducedMagnus coefficients of cruciform-tailedmissiles at high angles of attack.Themethod is applicable overntheMach number range, up to large angles of attack at arbitrary bank angles, providing analytical expressions of thennonlinear rolling moments: roll damping, roll driving, induced roll moments, and additional coupling terms. Thenanalytical expressions fit the form of the Maple–Synge expansion and the degree of nonlinearity shown bynexperimental results..