A NUMERICAL SIMULATION OF THE PRESSURE COEFFICIENT AROUND A CUBIC BUILDING MODEL

수치풍동 기법을 이용한 정사각형 건물 주위의 풍압계수에 관한 연구

  • 여재현 (서강대학교 대학원 기계공학과) ;
  • 허남건 (서강대학교 기계공학과) ;
  • 원찬식 (서강대학교 기계공학과) ;
  • 김사량 (강릉대학교 정밀기계공학과) ;
  • 최창근 (KAIST 건설 및 환경공학과)
  • Published : 2007.10.26

Abstract

In the present study, the pressure coefficient of a cubic building model is numerically simulated. Three turbulence models of standard ${\kappa}-{\varepsilon}$, RNG ${\kappa}-{\varepsilon}$ and LES are adopted and the results are compared with the available experimental data. From the results, it has been found that RNG ${\kappa}-{\varepsilon}$ turbulence model and LES turbulence model were shown to predict fairly well the experimental pressure coefficient. In contrast, the results of the standard ${\kappa}-{\varepsilon}$ turbulence model showed large discrepancies in pressure coefficient on the side and top surfaces of the cubic building, which limits the applicability of the standard ${\kappa}-{\varepsilon}$ turbulence model on wind engineering.

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