International Journal of High-Rise Buildings (국제초고층학회논문집)

Council on Tall Building and Urban Habitat Korea (한국초고층도시건축학회)
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Application Examples of CFD at the Planning Stage of High-Rise Buildings

  • Hiroto, Kataoka (Technology Research Institute, Obayashi Corporation) ;
  • Yoshiyuki, Ono (Technology Research Institute, Obayashi Corporation) ;
  • Kota, Enoki (Technology Research Institute, Obayashi Corporation) ;
  • Yuichi, Tabata (Technology Research Institute, Obayashi Corporation) ;
  • Satoko, Kinashi (Technology Research Institute, Obayashi Corporation)
  • Published : 2022.09.01
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Abstract

Application examples of computational fluid dynamics (CFD) in the planning stage of high-rise buildings are introduced. First, we introduce examples of applications in the environmental field. The pedestrian wind environment was one of the earliest practical examples of CFD. CFD was also employed to validate the heat island mitigation measures proposed as part of the new construction plan. Second, application examples of wind-force evaluations are introduced. Prediction examples are presented for the peak wind pressure around a complex-shaped building and the wind force evaluation for a base-isolated building. The results prove that the results of the proper execution of CFD are equivalent to those of the wind tunnel experiment. As examples of CFD applications of other issues related to high-rise building planning, we introduce snow accretion on outer walls and high-temperature exhaust from emergency generators. Finally, the future prospects for the use of CFD are discussed.

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Acknowledgement

The authors are grateful to Dr. K. Otsuka, Mr. S. Goto, and other department members at Obayashi Corporation for their kind cooperation in daily research. The authors express their profound gratitude to Prof. Emer. Y. Tamura (Tokyo Polytechnic University), Prof. Emer. A. Wada (Tokyo Institute of Technology), and Mr. M. Nakai (Takenaka Corporation) for providing us with this honorable opportunity.

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