Bibliographic Information
- Other Title
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- マルチファン型風洞による乱流圧力場の観察
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Abstract
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.
Journal
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- Memoirs of Faculty of Engineering, University of Miyazaki
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Memoirs of Faculty of Engineering, University of Miyazaki 48 35-39, 2019-07
宮崎大学工学部
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Details 詳細情報について
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- CRID
- 1050007314768934016
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- NII Article ID
- 120007120557
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- NII Book ID
- AA00732558
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- ISSN
- 05404924
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- HANDLE
- 10458/6698
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- Text Lang
- en
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- Article Type
- departmental bulletin paper
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- Data Source
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- IRDB
- CiNii Articles