書誌事項
- タイトル別名
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- Observation of Turbulence Field near the Inlet of the Test Section
抄録
<p>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 outflows from adjacent ducts, and found that this driving mode realizes high intensity (12-16 %) and large integral scale (0.6-0.7 m). It is focused on the pressure characteristics deeply related to vortex formation and tried to clarify the dominant parameters of ‘random-phase mode’. 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. As a result pressure drop depends on the r.m.s value ue’ of the input velocity signal. It was confirmed that the turbulence intensity increases with ue’.</p>
収録刊行物
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- 日本機械学会九州支部講演論文集
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日本機械学会九州支部講演論文集 2019.72 (0), E45-, 2019
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390002184877585792
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- NII論文ID
- 130007802010
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- ISSN
- 24242780
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可