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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (12): 129137-129137.doi: 10.7527/S1000-6893.2023.29137

• Fluid Mechanics and Flight Mechanics • Previous Articles     Next Articles

Characteristics of 3D ice breaking on leading edge of wing by plasma synthetic jet actuator array

Pan CHENG1,2, Xiangrong JING1(), Zhenbing LUO1, Tianxiang GAO1, Yan ZHOU1, Xiong DENG1, Qian SUN1   

  1. 1.College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China
    2.Key Laboratory of Icing and Anti/De-icing,China Aerodynamics Research and Development Center,Mianyang 621000,China
  • Received:2023-06-06 Revised:2023-06-26 Accepted:2023-07-15 Online:2024-06-25 Published:2023-08-11
  • Contact: Xiangrong JING E-mail:jingxiangrong18@163.com
  • Supported by:
    The Foundation of Key Laboratory of Icing and Anti/De-icing of CARDC(IADL20220410);Natural Science Foundation of Hunan Province(2021JJ40672);National Natural Science Foundation of China(12002377);National Science and Technology Major Project (J2019-Ⅲ-0010-0054);Shenyang Key Laboratory of Aircraft Icing and Ice Protection Foundation(YL2022XFX03)

Abstract:

Icing on Unmanned Aerial Vehicles will seriously affect their aerodynamic performance, particularly that on the wing leading edge which is more likely to occur and accumulate. In addition, the shape of icing on the wing leading edge is three-dimensional, making it urgent to develop low energy consumption and fast-response anti-icing technology to effectively remove the ice. According to the leading edge curvature of NACA0012, NACA0018 and NACA0024 airfoils, three ice shapes with different radians were fabricated. The characteristics of breaking three-dimensional ice shapes by single and array actuators were studied based on the advantages of fast response, low energy consumption and high jet strength of plasma synthetic jet actuators. The effect of outlets at 45° and 90° on the ice-breaking characteristics was analyzed, and the ice-breaking mechanism and rule of plasma synthetic jet actuators were clarified. The results show that, when the total discharge energy reaches 16.66 J, under the effect of a single actuator, for ice similar to NACA0012 with a small curvature radius on the wing leading edge, the jet impact stress is prone to concentration at the front vertex, and can produce through cracks up to 20 cm at the wing leading edge stagnation point line to realize effective ice breaking, while for ice with larger curvature radiuses, the ice breaking radius is about 5 cm; when the total discharge energy is kept constant at 16.66 J, the “single line” array arrangement near the stagnation point line of the actuator can produce through cracks for ice of three arcs to achieve ice breaking, indicating that the exciter array can effectively expand the ice breaking area with the ability to break ice in a large area with low energy consumption.The research results can provide theoretical and practical reference for UAVs with low energy consumption and large area icebreaking capability.

Key words: UAV de-icing, plasma synthetic jet actuator, actuator array, ice-breaking properties, three-dimensional ice

CLC Number: