Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Thermal Analysis of Heater for Anti-Icing System

방빙 시스템의 히터에 대한 열해석

  • Received : 2019.05.16
  • Accepted : 2019.07.23
  • Published : 2019.08.01
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Abstract

In this paper, the required amount of heat for an anti-icing system of a Flush Air Data Sensing(FADS) system is predicted. For an efficient prediction during the early stage of a design process, a handbook method is used. A program of which inputs are flight conditions is developed to predict the required amount of heat. A CFD analysis is conducted to compute the water catch efficiency which is one of the core parameters used in the handbook method. Kriging method, one of well-known regression mothods, is utilized to construct a surface contour database to evaluate impingements of droplets. To predict the trajectories of droplets, the database of a flow field around the surface is built using Kriging method as well.

본 논문은 Flush Air Data Sensing(FADS) 시스템의 방빙에 요구되는 열량을 예측하였다. 설계 초기 단계에서 효과적으로 요구 열량을 예측하기 위해 handbook 기법을 적용하였다. 이를 위해 비행환경에 따른 대표 물리량들을 입력하면 handbook 기법의 수식을 통해 열량을 예측하는 프로그램을 개발하였다. 이때 예측 값의 신뢰도를 높이기 위하여 handbook 기법에서 핵심적인 변수인 충돌효율계수를 CFD 해석을 통해 계산해 내었다. 액적 충돌 판정을 효과적으로 수행하기 위해 Kriging 기법을 적용하여 물체 형상에 대한 등고면 DB를 구축하였다. 또한 액적 궤적 예측을 위해 마찬가지로 Kriging 기법을 적용하여 속도장 DB를 구축하였다.

Keywords

References

  1. Meier, O., and Scholz, D., "A Handbook Method for the Estimation of Power Requirements for Electrical De-Icing System," DLRK, 2010.
  2. Al-Khalil, K., Horvath, C., Miller, D., and Wright, W., "Validation of NASA Thermal Ice Protection Computer Codes," NASA TM 2001-21097, 1995.
  3. Choi, J., and Lee, C., "Development of anti/de-icing heater for flush-type pitot tube," Proceeding of The Korean Society for Aeronautical and Space Sciences Spring Conference, 2009, p. 281-285.
  4. Son, C., Oh, S., and Lee, K., "Development of Navier-Stokes Based Simulation Code to Predict Ice Accretion Shapes," Proceeding of The Korean Society for Aeronautical and Space Sciences Spring Conference, 2014, pp. 67-70.
  5. Ahn, G.-B., Jung, K.-Y., Jung, S.-K., Shin, H.-B., and Myong, R.-S., "Investigation of the Performance of Anti-Icing System of a Rotorcraft Engine Air Intake," Journal of The Korean Society for Aeronautical and Space Sciences, Vol. 41, No. 4, 2013, pp. 253-260. https://doi.org/10.5139/JKSAS.2013.41.4.253
  6. Al-Khalil, K., Keith, Jr., T., and De Witt, K., "Thermal Analysis of Engine Inlet Anti-Icing System," 27th Aerospace Sciences Meeting, 1989.
  7. Lee, N., Lee, S., Cho, H., and Shin, S.-J., "Aerodynamic Performance of Rigid Plate in Plunging Motion at High Angles of Attack," Journal of Computational Fluids Engineering, Vol. 22, No. 3, 2017, pp. 47-53. https://doi.org/10.6112/kscfe.2017.22.3.047
  8. Jang, Y., Huh, H., Lee, N., Lee, S., and Park, Y., "Comparative Study on the Prediction of Aerodynamic Characteristics of Aircraft with Turbulence Models," International Journal of Aeronautical and Space Sciences, Vol. 19, No. 1, 2018, pp. 13-24. https://doi.org/10.1007/s42405-018-0022-6
  9. Roe, P. L., "Approximate Riemann Solvers, Parameter Vectors, and Difference Schemes," Journal of Computational Physics, Vol. 32, 1981, pp. 357-372. https://doi.org/10.1016/0021-9991(81)90128-5
  10. Van Leer, B., "Towards the ultimate conservative difference scheme. II. Monotonicity and conservation combined in a second-order scheme," Journal of computational physics, Vol. 14, No. 4, 1974, pp. 361-370. https://doi.org/10.1016/0021-9991(74)90019-9
  11. Chow, C. Y., "An Introduction to Computational Fluid Mechanics," John Wiley & Sons, Inc, 1979, p. 51-53.
  12. Cabler, S. J. M., "Advisory Circular," FAA, pp. 112-119.
  13. Krige, D. G., "Statistical approach to some basic mine valuation problems on Wit - watersrand," Chemical Metallurgical Mining Society, Vol. 53, No. 2, 1952, pp.43-44.
  14. Lophaven, S. N., Nielsen, H. B., and Sondergaard, J., "DACE A Matlab Kriging Toolbox Version 2.0," Technical Report IMMTR-2002-12, Aug., 2002.
  15. Jeck, R., "Icing Design Envelopes (14 CFR Parts 25 and 29, Appendix C) Converted to a Distance-Based Format," Federal Aviation Administration Rept., DOT/FAA/AR-00/30, 2002.