書誌事項
- タイトル別名
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- Observation of Turbulence Field using a Multi-fan Wind Tunnel
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抄録
Easy control of turbulence intensity and scale is of basic importance for the experiments concerning effects of turbulence in a wind tunnel. Using a `multi-fan wind tunnel', we devised `random-phase mode', which makes use of shear layers generated between the outfows from adjacent ducts, and found that this driving mode realizes high intensity (12-16 %) and large integral scale (0.6-0.7 m). In the present paper, in order to determine which parameter facilitates the turbulence control, we conducted measurements of pressure field immediately downstream of the inlet of the test section. It was found that the pressure drop is characterized by the rms. value μ'e of the input velocity signal. Thus, it is expected that turbulence intensity might be controlled by μ'e. It was confirmed that the turbulence intensity increases with μ'e.
収録刊行物
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- 宮崎大学工学部紀要
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宮崎大学工学部紀要 48 35-39, 2019-07
宮崎大学工学部
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詳細情報 詳細情報について
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- CRID
- 1050007314768934016
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- NII論文ID
- 120007120557
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- NII書誌ID
- AA00732558
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- ISSN
- 05404924
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- HANDLE
- 10458/6698
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- 本文言語コード
- en
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- CiNii Articles