한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지
DOI QR코드

DOI QR Code

격자 세분화 방법을 고려한 복사열전달 형상계수 계산 기법 연구

STUDY ON VIEW FACTOR CALCULATION FOR RADIATIVE HEAT TRANSFER BY USING THE MESH SUBDIVISION METHOD

  • 김동건 (중앙대학교 기계공학부) ;
  • 한국일 (중앙대학교 기계공학부) ;
  • 최준혁 (중앙대학교 기계공학부) ;
  • 이장준 (한국항공우주연구원 위성 열/추진팀) ;
  • 김태국 (중앙대학교 기계공학부)
  • Kim, D.G. (Dept. of Mechanical Engineering, Chung-Ang Univ.) ;
  • Han, K.I. (Dept. of Mechanical Engineering, Chung-Ang Univ.) ;
  • Choi, J.H. (Dept. of Mechanical Engineering, Chung-Ang Univ.) ;
  • Lee, J.J. (Thermal/Propulsion Dept., Korea Aerospace Research Institute Satellite) ;
  • Kim, T.K. (Dept. of Mechanical Engineering, Chung-Ang Univ.)
  • 투고 : 2013.09.12
  • 심사 : 2014.02.17
  • 발행 : 2014.03.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Since experiments on the actual operational status are said to be very impractical because of their economic and repeatability problems, it is difficult to understand the thermal profiles of aerospace or military equipments. Thus, the CFD codes with considering the radiation heat transfer are used to compensate the defect. In case, analyzing the radiation exchanges between the object surfaces are very important. Because the temperature and the IR signal distributions of the object surface are significantly affected by the radiative heat transfer. To achieve accurate thermal radiation exchange between surfaces, it is important to calculate the radiation view factor precisely. Finer subdivision of meshes can be used to increase the accuracy of radiation view factor, but if the mesh is subdivided infinitely, the time required for calculation increases significantly and thus decreasing the efficiency. If the subdivision is not sufficient, assurance of accuracy is not guaranteed. In this paper, optimal mesh subdivision method using the solid angle has been successfully tested and found to be useful in increasing the efficiency of calculating the shape factors.

키워드

참고문헌

  1. 2004, Raimundo, A., Gaspar, A. and Quintela, D., "Numerical Modelling of Radiatice Heat Exchanges Between the Human Body and Surrounding Surfaces," Mediterranean Congress of Climatization, 1-10, Lisboa, Portugal.
  2. 2005, Lee, J.J., Kim, H.K., Hyun, B.S. and Choi, J.M., "A Verification of Satellite Thermal Analysis Code by using Analytical Method," The Korea Society for Aeronautical and Space Sciences, Vol.05-1713, pp.610-613.
  3. 2011, Kim, D.G., Choi, J.H. and Kim, T.K., "Characteristic Analyses of the Reflected Components of IR Signals due to Multiple Reflection on Object Surfaces," Proceedings of SPIE, Vol.8180-818016.
  4. 2010, Choi, J.H., Kim, J.H., Jung, I.H., Lee, P.H. and Kim, T.K., "Study on IR Signature Characteristics for different Transmittaance over the Korean South Sea during Summer and Winter Seasons," Journal of the Korea Institute of Military Science and Technology, Vol.13, No.2, pp.320-327.
  5. 2002, Gilmore, D.G., "Spacecraft Thermal Control Handbook," American Institute of Aeronautics & Ast., Vol.1, pp.36-47.
  6. 2009, Hassanzadeh, P., Raithby, G.D. and Chui, E.H., "Efficient Calculation of Radiation Heat Transfer in Anisotropically Scattering Media Using the $Q_L$ Method," Computational Thermal Sciences, Vol.1, pp.189-206. https://doi.org/10.1615/ComputThermalScien.v1.i2.50
  7. 1978, Sparrow, E.M. and Cess, R.D., "Radiation Heat Transfer," Augmented Edition, Washington : CRC Press.
  8. 1992, Siegel, R. and Howell, J.R., Radiation Heat Transfer, 3rd ed., Hemisphere, New York, USA.
  9. 2010, Walker, T., Xue, S.-C. and Barton, G.W., "Numerical Determination of Radiation View Factors Using Ray Tracing," Journal of Heat Transfer, Vol.132, 072702-1-6. https://doi.org/10.1115/1.4000974
  10. 1997, Howell, J.R., "The Monte Carlo Method in Radiative Heat Transfer," Journal of Heat Transfer, Vol.120, pp.547-560.
  11. 1995, Allen, R.C., Keith, R.J. and Eric, A.M., "Automated Radiation Modeling for Vehicle Thermal Management," SAE International Congress and Exposition.
  12. RadthermIR, http://www.thermoanalytics.com
  13. 2003, Modest, M.F., "Radiative Heat Transfer," Academic Press, pp.762-778.

피인용 문헌

  1. Pan-Tilt IR Scanning Method for the Remote Measurement of Mean Radiant Temperatures at Multi-Location in Buildings vol.13, pp.11, 2021, https://doi.org/10.3390/rs13112158