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Coupled Simulations for a Canard-Controlled Projectile with Thrust-Vector Control

JUBARAJ SAHU, FRANK FRESCONI, BENJAMIN GRUENWALD

Abstract


This paper describes a computational study to understand the aerodynamic and flight dynamic behavior of a canard-controlled, fin-stabilized body with thrust-vector control (TVC) at a supersonic velocity. Numerical simulations have been performed for this projectile with TVC using an advanced coupled computational fluid dynamics (CFD)/rigid body dynamics (RBD) technique. The coupled CFD/RBD method allows time-accurate, virtual fly-out simulations of projectiles and simultaneously predicts the aerodynamics and the flight dynamics in an integrated manner. The jet control maneuver is achieved by the nozzle located in the rear section of the projectile. Computed results show the actual time-dependent response of the flight vehicle and the resulting unsteady aerodynamics and flight dynamics with jet control for a variety of conditions. Comparison of total angle of attack results with and without the thrust nozzle deflected indicates that the coupled calculation automatically captures the relevant jet interaction physics resulting in high angle of attack flights.


DOI
10.12783/ballistics2019/33108

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