Motion-induced unsteady effect is becoming one of the inevitable challenges for the improvement of high-speed and high-maneuvering projectiles performance under a transverse jet control. Therefore, three-dimensional, compressible, unsteady, Reynolds-averaged-Navier-Stokes numerical investigations are performed to illustrate motion-induced unsteady effects on transverse jet interaction. Two pitch motion types, including forced-oscillation and free-response-motion, were chosen to evaluate the potential effects. The current study found that time hysteresis and aerodynamic deviation appear comparing to steady counterparts. Forced-pitch-oscillation data indicate negative interaction-force-amplification-factors at a certain angle of attack while interaction-moment-amplification-factors show an obvious decrease at a relatively high angle of attack. Meanwhile, transverse-jet-controlled free-response-motion data, obtained through coupled CFD/RBD/JET method (a coupled method with CFD (Computation Fluid Dynamics) and RBD (Rigid Body Dynamics) under the control of a transverse jet), visualized positive enhancement of rear jet interaction, as the desired angle can be achieved in less time. Taken together, it is possible that motion-induced unsteady effects on transverse jet interaction may be underestimated and are worthy to be discussed deeply for energy-efficient and flight safety concerns.

运动引起的不稳定影响正成为在横向射流控制下改善高速和高机动弹丸性能的必然挑战之一。因此，进行了三维，可压缩，不稳定，雷诺平均的Navier-Stokes数值研究，以说明运动引起的对横向射流相互作用的不稳定影响。选择了两种俯仰运动类型，包括强制振荡和自由响应运动，以评估潜在的影响。当前的研究发现，与稳定状态相比，出现了时间滞后和空气动力学偏差。强迫音高振荡数据表明在一定攻角下负作用力放大因子，而在相对高攻角下相互作用矩放大因子明显降低。同时，通过CFD / RBD / JET耦合方法（与CFD（计算流体动力学）和RBD（刚体动力学）耦合的方法）在横向射流控制下获得的横向射流控制的自由响应运动数据，可视化地增强了后部射流的相互作用，因为可以在更短的时间内获得所需的角度。两者合计，可能会低估运动引起的对横向射流相互作用的非稳态影响，值得就能源效率和飞行安全问题进行深入讨论。因为可以在更短的时间内获得所需的角度。两者合计，可能会低估运动引起的对横向射流相互作用的非稳态影响，值得就能源效率和飞行安全问题进行深入讨论。因为可以在更短的时间内获得所需的角度。两者合计，可能会低估运动引起的对横向射流相互作用的非稳态影响，值得就能源效率和飞行安全问题进行深入讨论。