在超音速条件下，提高壁面横向射流的混合效率对于提升燃烧效率和节省燃料至关重要。脉冲放电能量沉积技术已被证实是促进横向射流混合的有效方法。本研究专注于脉冲放电能量沉积控制下的横向射流流场结构变化，以及动量通量比对控制效果的影响。在马赫数为2.47的来流条件下，进行了风洞实验，探讨了上游脉冲放电能量沉积阵列如何改善下游横向射流的混合。通过高速纹影和平面激光散射技术，从流场结构特性上揭示了高频能量沉积对单孔喷射射流的影响，以及单脉冲能量沉积对双孔喷射射流的影响。同时，利用基于时间分辨纹影图像的均方根和快速傅里叶变换方法，揭示了流场的脉动特性和频谱特性。采用SPOD技术，研究了高频能量沉积作用下横向射流的演化特性。研究发现，脉冲放电能量沉积能够产生“含能涡”，对射流结构产生显著影响，包括使弓形激波弱化，减缓激波的低频振荡，并在射流羽流中诱导出与放电频率一致的超大尺度的尾迹涡，显著提升了射流的穿透深度和展向宽度。当含能涡与两道弓形激波相互作用后，会发生二次强化。研究还表明，高频能量沉积显著增强了射流的脉动强度。随着动量通量比的增加，能量沉积的扰动能力增强，扰动范围也随之扩大。

Improving the mixing efficiency of wall-normal jets in supersonic flows is crucial for enhancing combustion efficiency and conserving fuel. Pulse discharge energy deposition has been shown to be an effective method for enhancing the mixing of transverse jets. The study investigates the structure of transverse jets and the effectiveness of control methods influenced by the momentum flux ratio. Experiments were carried out in a wind tunnel with an incoming flow Mach number of 2.47, focusing on how upstream plasma energy deposition arrays could improve the mixing of downstream transverse jets. Employing high-speed schlieren and planar laser scattering techniques, the research unveiled the impact of high-frequency energy deposition on the flow field structural characteristics of single-hole jet injection and the effects of single-pulse energy deposition on double-hole jet injection. Furthermore, the fluctuation and spectral characteristics of the flow field were elucidated using time-resolved schlieren image-based root mean square and fast Fourier transform methods. The evolution mechanism of transverse jets under high-frequency discharge was probed using SPOD technology. The findings indicate that pulse discharge energy deposition generates "energetic eddies," which substantially alter the jet structure. These eddies diminish the bow shock wave, decrease the low-frequency oscillations of the shock wave, and create super-large-scale wake vortices that are in sync with the discharge frequency within the jet plume. This results in a significant improvement in the jet's penetration depth and the spanwise width near the wall. When the energetic vortex interacts with the downstream bow shock, secondary reinforcement occurs. Additionally, the study demonstrated that high-frequency energy deposition markedly boosts the fluctuation intensity of the jet. As the momentum flux ratio increases, the disturbance capability of energy deposition is enhanced, and the range of disturbance also expands.