高超声速安定面／舵面干扰特性研究

摘要

为了改善高超声速乘波体飞行器的稳定性及操作性，针对安定面/舵面组合体的绕流特性进行研究。通过数值求解RANS方程，对Ma＝6时安定面/全动舵组合体关键参数对舵效的影响规律进行研究，并对流动机理进行分析。计算结果表明，安定面与全动舵间水平距离、垂直距离是影响舵效的关键参数。分析干扰流场可知，全动舵主要受到安定面尾迹、激波系及翼尖涡的干扰。其中，安定面尾迹对舵面干扰最大，故全动舵应尽量避开安定面尾迹。%Based on RANS solver ,the hypersonic stabilizer/rudder flow has been numerically simulated to find out the influence of the key parameters to the control surface efficiency ,which is of great significance for the stability and controllability of a hypersonic waverider vehicle .By analyzing the stabilizer/rudder flow,it shows that the relative horizontal and vertical distances between the stabilizer and rudder are the key parameters to improve the control surface efficiency .By analyzing the flow mechanism ,we know that the trailing-edge wake ,the shock wave and tips vortex of the stabilizer ,have a negative influence on the rudder ,which in turn will decrease the control surface efficiency .The comparison shows that the stabilizer wake leads to the main interference .