横向喷流对鸭式导弹滚转特性影响研究

摘要

通过数值方法求解三维可压缩雷诺平均 N-S 方程，对导弹横向喷流的干扰流场进行了数值模拟，计算结果与实验数据吻合较好，基本验证了计算方法在横向喷流复杂流场数值模拟方面的有效性。在此基础上，对固定尾翼鸭式布局导弹亚、跨、超声速流场进行了数值模拟，并且计算分析了横向喷流对鸭式布局导弹滚转控制特性的影响，计算结果表明，横向喷流可以有效提高鸭式布局导弹的滚转控制能力。%The subsonic,transonic and supersonic flow fields are simulated for a canard mis-sile by solving the 3-D,compressible N-S equations.The capability of the canard missile is main-ly restricted by rolling control characteristics.The lateral jet interaction field structure is ob-tained by numerical simulation.Comparison of CFD results with experiment date shows that the numerical method is accurate and stable in lateral jet interaction field simulation.Then the re-search of lateral jet interaction for rolling control of the canard missile is simulated,it shows that the rolling control characteristics of the canard missile can be improved by lateral jet.