COMPUTATIONAL FLUID DYNAMICS PREDICTION OF PITCH AND ROLL DAMPING FOR THE MISSILE MODELS AND COMPARISON WITH EXPERIMENT

İSKENDER KAYABAŞI

ROKETSAN Missile Industries Inc., P.K.:30, 06780 Elmadağ-Ankara-Türkiye, ikayabasi@roketsan.com.tr

ALİ AKGÜL

ROKETSAN Missile Industries Inc., P.K.:30, 06780 Elmadağ-Ankara-Türkiye, aakgul@roketsan.com.tr

YUNUS EMRE SUNAY

ROKETSAN Missile Industries Inc., P.K.:30, 06780 Elmadağ-Ankara-Türkiye, esunay@roketsan.com.tr

Abstract: Roll and pitch damping coefficients are very crucial in terms of dynamic stability of missiles. The aim of this study is to predict the roll and pitch damping coefficients of missiles by using Computational Fluid Dynamics (CFD) methods. Wind tunnel data of Modified Basic Finner (MBF) test model was used for CFD simulations. Computations were performed at Mach numbers 0.6 and 1.75 at angle of attacks ranging from -5° to 7°. Different CFD methods and reduced frequencies were used for simulations of roll and pitch motions. Computed results were compared with the experimental data obtained from different wind tunnels for validation of CFD methods.