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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (1): 66-75.doi: 10.7527/S1000-6893.2013.0009

• Fluid Mechanics and Flight Mechanics • Previous Articles     Next Articles

Coupled Design of Maneuver Glide Reentry Trajectory and Aerodynamic Characteristic Parameters Considering No-fly Zone

YONG Enmi, QIAN Weiqi, TANG Wei, FENG Yi   

  1. State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2012-01-21 Revised:2012-03-26 Online:2013-01-25 Published:2013-01-19

Abstract:

A coupled maneuver trajectory and aerodynamic characteristic parameters design approach considering no-fly zone is developed to obtain the best aerodynamic and maneuver performance of a glide reentry vehicle. The aerodynamic characteristic parameters achieved by a parabola drag model are taken as the design variables of the outer loop of the coupled design. In the inner loop, the normalized lift coefficient and bank angle are modulated to get a reentry trajectory while avoiding the no-fly zone at a given lift-drag ratio. For the goal of the minimization of the heat load, the best aerodynamic property parameters are designed to achieve the maneuver ability with the constraints of the position and velocity. A lateral geometry guidance is developed to generate the reentry trajectory in the inner loop. The numerical simulation indicates that the larger the radius of the no-fly zone is, the higher the lift-drag ratio is required of the vehicle for the reentry trajectory to just go around the no-fly zone. The results demonstrate that the coupled design approach is effective and can provide a useful reference for aerodynamic configuration design.

Key words: hypersonic, aerodynamic characteristic, coupled design, no-fly zone, quasi-equilibrium glide

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