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Acta Aeronautica et Astronautica Sinica ›› 2026, Vol. 47 ›› Issue (11): 633381.doi: 10.7527/S1000-6893.2026.33381

• Special Topic: Anti-icing and De-icing Technology for Aeroengines • Previous Articles    

Mechanism and experiment on de-icing by plasma synthetic jet actuator with oblique jet outlet

Kaiqiang CAO, Pan CHENG(), Xiangrong JING, Zhenbing LUO, Tianxiang GAO, Wenjie FENG, Yan ZHOU, Wenqiang PENG   

  1. College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China
  • Received:2026-01-16 Revised:2026-02-02 Accepted:2026-04-28 Online:2026-06-15 Published:2026-06-15
  • Contact: Pan CHENG E-mail:chengpan1020@163.com
  • Supported by:
    National Natural Science Foundation of China(12472276);Science and Technology Innovation Program of Hunan Province(2024RC3149)

Abstract:

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.

Key words: aircraft icing, plasma synthetic jet actuator, oblique jet, low-energy-consumption de-icing, adherent ice

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