한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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3차원 착빙 형상 예측을 위한 2세대 시뮬레이션 코드 개발

DEVELOPMENT OF 2ND GENERATION ICE ACCRETION ANALYSIS PROGRAM FOR HANDLING GENERAL 3-D GEOMETRIES

  • 손찬규 (서울대학교 항공우주신기술연구소) ;
  • 오세종 (부산대학교 항공우주공학과) ;
  • 이관중 (서울대학교 기계항공공학부)
  • Son, Chankyu (Institute of Advanced Aerospace Technology, Seoul National Univ.) ;
  • Oh, Sejong (Dept. of Aerospace Engineering, Pusan National Univ.) ;
  • Yee, Kwanjung (Dept. of Mechanical & Aerospace Engineering, Seoul National Univ.)
  • 투고 : 2015.04.30
  • 심사 : 2015.05.28
  • 발행 : 2015.06.30
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초록

The $2^{nd}$ generation ice accretion analysis program has been developed and validated for various icing conditions. The essential feature of the $2^{nd}$ generation code lies in its capability of handling general 3-D geometry and improved accuracy. The entire velocity fields are obtained based on Navier-Stokes equations in order to take the massively separated flow field into account. Unlike $1^{st}$ generation code, the droplet trajectories are calculated using Eulerian approach, which is adopted to yield appropriate collection efficiency even in the shadow region. For improved thermodynamic analysis on the surfaces, water film model and modified Messinger model are newly included in the present analysis. The ice shape for a given time step is obtained by considering the exact amount of ice accreted on the surface. Each module of the icing analysis code has been seamlessly integrated on the OpenFOAM platform. The developed code was validated against available experimental data for 2D airfoils and 3D DLR-F4. Due to the lack of experimental data, the computed results of DLR-F4 were compared with those obtained from FENSAP-ICE, which is state-of-the-art 3D icing analysis code. It was clearly shown that the present code produces comparable results to those of FENSAP-ICE, in terms of prediction accuracy and the capability of handling general 3-D geometries.

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참고문헌

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피인용 문헌

  1. COMPUTATIONAL ANALYSIS OF AN ELECTRO-THERMAL ICE PROTECTION SYSTEM IN ATMOSPHERIC ICING CONDITIONS vol.21, pp.1, 2016, https://doi.org/10.6112/kscfe.2016.21.1.001
  2. 표면 조도를 고려한 난류 천이 모델의 항공기 결빙 해석자에 대한 적용 연구 vol.48, pp.1, 2015, https://doi.org/10.5139/jksas.2020.48.1.23
  3. New Roughness-Induced Transition Model for Simulating Ice Accretion on Airfoils vol.59, pp.1, 2021, https://doi.org/10.2514/1.j059222