WIND-INDUCED VENTILATION OF VOID IN HIGH-RISE APARTMENT BUILDING WITH HELIPORT

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  • ヘリポートを持つ高層集合住宅ボイドの風力換気性状
  • ヘリポート オ モツ コウソウ シュウゴウ ジュウタク ボイド ノ フウリョク カンキ セイジョウ

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Abstract

The basic characteristics of the wind-induced ventilation of the void located in the center of high-rise apartment buildings was clarified by means of wind tunnel tests. The airflow rates were also measured and the simplified calculation by modified Bernoulli's equation were conducted. As a result, it was made clear that the airflow pattern of void is mainly characterized by wind directions and the heliport at the top of void affects the flow pattern near the top openings. Especially, the interesting phenomenon that the unstable flow occurs at the wind direction of around 135 degrees was observed. The calculated results were practically in good agreement with the measured ones except the wind direction of around 135 degrees.

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