建築付帯物から発生する空力騒音の数値予測に関する基礎的研究

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  • BASIC STUDY ON NUMERICAL PREDICTION OF AEROACOUSTIC NOISE RADIATED FROM BALUSTERS OF BUILDINGS
  • ケンチク フタイブツ カラ ハッセイ スル クウリキ ソウオン ノ スウチ ヨソク ニ カンスル キソテキ ケンキュウ

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Quantitative methods for predicting aeroacoustic noise radiated from balusters of buildings have been expected as a tool for its effective reduction. We applied a numerical method of solution based on Lighthill-Curle equation. As a basic step, we attempted to predict characteristics of the sound radiated by airflow around a row of square cylinders at Reynolds number 1000 by 2-dimensional analysis. We also made a comparison of solutions of an isolated cylinder wake flow at the same Reynolds number by 2- and 3-dimensional analyses, as a preparation for further improvement of the method.

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