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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (S2): 729287-729287.doi: 10.7527/S1000-6893.2023.29287

• Icing and Anti/De-icing • Previous Articles     Next Articles

Extension of Eulerian wall film model in icing simulation

Huajie XIONG, Yijing AN, Zhulong WU, Zhihong ZHOU()   

  1. Department of Mechanical Science and Engineering,Sichuan University,Chengdu 610065,China
  • Received:2023-07-10 Revised:2023-07-16 Accepted:2023-07-17 Online:2023-07-24 Published:2023-07-21
  • Contact: Zhihong ZHOU E-mail:zhouzhihong@scu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(12072213);National Science and Technology Major Project(J2019-III-0010-0054);National Numerical Windtunnel Project(NNW2019-JT01-023)

Abstract:

In icing thermodynamic models, while the description of heat transfer and phase change is complete, the description of water film flow is usually simplified. To solve this problem, the calculation-correction method is used to expand the ability of Eulerian Wall Film (EWF) model in icing simulation, and the characteristics of the extended model in numerical schemes and icing prediction are studied. Calculations show that the icing rate gradually stabilizes over time. During the calculation, the second-order implicit method and the second-order upwind scheme show better stability, and the time-step and temporal/spatial differencing scheme have little effect on the calculation accuracy. In terms of icing prediction, the extended model has more advantages for the icing prediction of NACA0015 airfoil, compared with LEWICE software; the extended model is closer to the experimental results in the prediction of ice horn at relatively high speeds, compared with the icing model that simplifies the flow of the water film. In addition, the extended model also shows good adaptability in the icing simulation of the 30P30N airfoil and DPW aircraft.

Key words: aircraft icing, Eulerian wall film model, water film flow, data format, icing prediction

CLC Number: