Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
권호 표지
DOI QR코드

DOI QR Code

Wind Pressure Coefficients and Spectrum Estimation of Dome by Improved Delayed Detached Eddy Simulation

Improved Delayed DES 해석을 통한 돔 형상의 풍압 계수 및 풍압 스펙트럼 산정

  • Park, Beom-Hee (Dept. of Architectural Engineering, Inha University) ;
  • Jeon, Doo-Jin (Dept. of Architectural Engineering, Inha University) ;
  • Han, Sang-Eul (Dept. of Architectural Engineering, Inha University)
  • Received : 2019.11.05
  • Accepted : 2019.12.09
  • Published : 2019.12.15
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the reliability of the analysis is evaluated by comparing the average wind pressure coefficient, RMS wind pressure coefficient and wind pressure spectrum with same condition of wind tunnel test which are calculated in the high-Reynolds number range of 1.2×106, 2.0×106 each for the typical curved shape dome structure. And it is examined by the reliability of analysis through Improved delayed detached Eddy Simulation(IDDES), which is one of the hybrid RANS/LES techniques that can analyze the realistic calculation range of high Reynolds number. As a result of the study, it was found that IDDES can be predicted very similar to the wind tunnel test. The distribution pattern of the wind pressure coefficient and wind pressure spectrum showed a similar compared with wind tunnel test.

Keywords

References

  1. Cheng, C. M., & Fu, C. L., "Characteristic of wind loads on a hemispherical dome in smooth flow and turbulent boundary layer flow", Journal of Wind Engineering and Industrial Aerodynamics, Vol.98, No.6-7, pp.328-344, 2010 https://doi.org/10.1016/j.jweia.2009.12.002
  2. Spalart, P. R., Jou, W. -H., Strelets, M., & Allmaras, S. R. (1997). Comments on the Feasibility of LES for Wings, and on a Hybrid RANS/LES Approach. Proceedings of the 1st AFOSR International Conference on DNS/LES, USA, pp.137-148
  3. Spalart, P. R., Deck, S., Shur, M. L., Squires, K. D., Strelets, M. K., & Travin, A., "A New Version of Detached-eddy Simulation, Resistant to Ambiguous Grid Densities", Theoretical and Computational Fluid Dynamics, Vol.20, No.3, pp.181-195, 2006 https://doi.org/10.1007/s00162-006-0015-0
  4. Shur, M. L., Spalart, P. R., Strelets, M. K., & Travin, A. K., "A hybrid RANS-LES approach with delayed-DES and wallmodelled LES capabilities", International Journal of Heat and Fluid Flow, Vol.29, No.6, pp.1638-1649, 2008 https://doi.org/10.1016/j.ijheatfluidflow.2008.07.001
  5. Spalart, P. R. (2001). Young-Person's Guide to Detached-eddy Simulation Grids (Report No. NASA/CR-2001-211032). USA: National Aeronautics and Space Administration. Retrieved from https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20010080473.pdf
  6. Paik, J., & Sotiropoulos, F., "DES of turbulent flow over wall-mounted obstacles using wall functions", KSCE Journal of Civil Engineering, Vol.16, No.2, pp.189-196, 2012 https://doi.org/10.1007/s12205-012-0001-6
  7. Gritskevich, M. S., Garbaruk, A. V., & Menter, F. R., "A Comprehensive Study of Improved Delayed Detached Eddy Simulation with Wall Functions", Flow, Turbulence and Combustion, Vol.98, No.2, pp.461-479, 2017 https://doi.org/10.1007/s10494-016-9761-2
  8. Fu, C. L., Cheng, C. M., Lo, Y. L., & Cheng, D. Q., "LES simulation of hemispherical dome's aerodynamic characteristics in smooth and turbulence boundary layer flows", Journal of Wind Engineering and Industrial Aerodynamics, Vol.144, pp.53-61, 2015 https://doi.org/10.1016/j.jweia.2015.05.010