DEVELOPMENT OF CFD METHOD FOR PREDICTING WIND ENVIRONMENT AROUND A HIGH-RISE BUILDING : Part 1 : The cross comparison of CFD results using various k-ε models

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  • CFDを利用した高層建物周辺の風環境予測手法の開発 : その1:ベンチマークテストによる各種k-εモデルの相互比較
  • CFDを利用した高層建物周辺の風環境手法の開発(その1)ベンチマークテストによる育種k-εモデルの相互比較
  • CFD オ リヨウ シタ コウソウ タテモノ シュウヘン ノ カゼ カンキョウ シュホウ ノ カイハツ ソノ 1 ベンチマークテスト ニ ヨル イクシュ k イプシロン モデル ノ ソウゴ ヒカク

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Recently, the prediction of wind environment around a building using Computational Fluid Dynamics (CFD) technique comes to be carried out at the practical design stage. However, there have been very few studies, which examined the accuracy of CFD prediction of flow around a high-rise building including the velocity distribution at pedestrian level. The working group for CFD prediction of wind environment around building, which consists of researchers from several universities and private companies, was organized in Air Environment Sub-committee considering such a background. At the first stage of the project, the working group planned to carry out the cross comparison of CFD results of flow around a high rise building by various numerical methods, in order to clarify the major factors which affect prediction accuracy. This paper presents the results of this comparison.

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