Aerodynamic Characteristics of a Missile Model with Direct Force and Aerodynamic Force Compound Control Technology
ZHAO Zhongliang1， LI Hao1， LAI Jiang2， YANG Haiyong1， WANG Xiaobing1，LI Yuping1
1. High Speed Aerodynamics Institute， China Aerodynamics Research and Development Center， Mianyang 621000， Sichuan， China；2. Computational Aerodynamics Institute， China Aerodynamics Research and
Development Center， Mianyang 621000， Sichuan， China
Abstract The direct force and aerodynamic force compound control technology is proposed for achieving the rapid turning and precise guided strike in high-maneuver tactical missiles. To investigate the coupling interaction problems in the compound control method, both wind tunnel experiments and unsteady numerical simulations are conducted on a typical missile configuration with transverse jet nozzles. Specially, dynamic response to the direct force/aerodynamic force control are carried out experimentally in wind tunnel. The results shows that the rear transverse jets provide beneficial interaction for aerodynamic characteristics. As a consequence of the pitching motion, the upstream separation region is largely affected by the unsteady interaction flow. And the aerodynamic coefficients experience obvious dynamic hysteresis, which is enhanced by the pitching motion rate. The amplification factor of pitch moment is more seriously affected under large angle-of-attack in the pitching motion, which is deviated from the static counterparts and leads to unfavorable impact. The direct force/aerodynamic force compound control is proven to be capable of increasing the pitching-up velocity, and it is a reliable option for rapid turning and precise attitude control.
2022, Vol. 5 
