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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2023, Vol. 44 ›› Issue (1): 627817-627817.doi: 10.7527/S1000-6893.2022.27817

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Phase change and adhesion characteristics of ice crystal movements in wing icing

Yijian MA1,2, Delin CHAI1, Qiang WANG1,2, Xian YI1,2(), Manzhao KONG3   

  1. 1.Key Laboratory of Icing and Anti /De-icing,China Aerodynamics Research and Development Center,Mianyang 621000,China
    2.State Key Laboratory of Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,China
    3.AVIC The First Aircraft Design Institute,Xi ’an 710089,China
  • Received:2022-07-15 Revised:2022-08-01 Accepted:2022-08-11 Online:2023-01-15 Published:2022-08-17
  • Contact: Xian YI E-mail:yixian_2000@163.com
  • Supported by:
    National Natural Science Foundation of China(12132019);National Science and Technology Major Project(J2019-III-0010-0054)

Abstract:

The movement, phase change and adhesion of ice crystals widely exist in the process of internal icing of aircraft engines. To study the internal icing of the engine and ensure flight safety, we explore the corresponding calculation methods, and systematically analyze the phase transition and adhesion characteristics of ice crystals. In view of the calculation of the phase transition and adhesion characteristics of ice crystals, a numerical calculation method of coupling the ice crystal motion-heat and the mass transfer under the Lagrange framework was established, the calculation method of the impact and adhesion collection coefficient of ice crystals based on the Monte Carlo method proposed, and the corresponding calculation procedure developed based on the NNWICE platform. Taking the NACA0012 airfoil as the research object, we calculated the motion and heat transfer process of three non-spherical ice crystal particles and spherical ice crystals in oblate, hexagonal flat and prolate, systematically analyzing the influence of incoming flow temperature on the adhesion characteristics of ice crystals. The influence of the ice crystal shape on the motion trajectory and melting process of ice crystals, and the effect of the total temperature of the incoming flow and Liquid Water Content/Total Water Content (LWC/TWC) on the adhesion characteristics of ice crystals were obtained. This work lays the foundation for further development of numerical simulation calculations for mixed-phase icing.

Key words: mixed phase icing, ice crystal shape, melting ratio, sticking efficiency, collection coefficient

CLC Number: