结冰广泛存在于飞行器飞行过程中，严重影响飞行器性能。体型小、防冰能力弱的无人机（UAVs）无法将有限的能量应用于防除冰，较难搭载传统的防除冰系统，亟需发展新型低能耗、高效率防除冰技术。设计了一种斜射流等离子体激励器（PSJA），开展了射流作用方式及破除非黏附冰特性实验研究，结果表明斜射流相比于直射流，能量利用更充分，有效除冰面积更大；从低能耗角度开展了电热/斜射流等离子体激励器组合破除黏附冰实验，对于4 mm厚的黏附冰，斜射流等离子体激励器在电热装置工作40 s后即可实现黏附冰的无残留破除，而直射流等离子体激励器在80 s时才可实现同样程度的破坏，验证了斜射流等离子体激励器相较于传统电热及直射流等离子体激励器除冰方法的低能耗优势；分析了等离子体激励器破冰时冰与基底间液膜边界演化情况，揭示了斜射流等离子体激励器高效破除黏附冰的机理，斜射流会创造更大面积的非黏附区域降低黏附冰的破除难度，实现有效除冰。研究可为无人机低能耗除冰提供理论及实践参考。

Icing is widespread during aircraft flight and severely impairs aircraft performance. Small Unmanned Aerial Vehicles （UAVs） with weak anti-icing capabilities cannot allocate their limited energy to anti-icing and de-icing， making it difficult to equip them with traditional anti-icing and de-icing methods. Thus， there is an urgent need to develop new low-energy-consumption and high-efficiency anti-icing and de-icing technologies. An oblique jet Plasma Synthetic Jet Actuator （PSJA） was designed， and experimental research on its ice-breaking flow field and characteristics of non-adherent-ice-breaking was conducted. The results show that compared with the straight jet， the oblique jet achieves more efficient energy utilization and a larger effec-tive de-icing area. From the perspective of low energy consumption， experiments on removing adherent ice using a com-bined electric heating/oblique jet plasma synthetic jet actuator system were carried out. For 4 mm-thick adherent ice， the experiments demonstrated that the oblique jet plasma synthetic jet actuator can achieve residue-free removal of adherent ice after the electric heating device operates for 40 s， while the straight jet plasma synthetic jet actuator requires 80 s to achieve the same level of ice destruction. This verifies the low-energy-consumption advantage of the oblique jet plasma synthetic jet actuator compared to traditional electric heating and straight jet plasma synthetic jet actuator de-icing methods. By analyzing the evolution of the liquid film boundary between the ice and the substrate during the ice-breaking process of the plasma actuator， the mechanism of efficient adherent ice removal by the oblique jet plasma synthetic jet actuator was further revealed： the oblique jet creates a larger non-adhesive area， reducing the difficulty of breaking adherent ice and achieving effective de-icing. The above research can provide theoretical and practical references for low-energy-consumption ice removal of UAVs.