書誌事項
- タイトル別名
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- Space–time 3D measurement of turbulence modulation with microbubbles by cross section laser imaging
説明
<p>In order to investigate interaction between microbubbles and coherent structure in a turbulent boundary layer, we visualized microbubbles injected into the boundary layer of a horizontal channel flow. A laser sheet illuminated a cross section slanted to the streamwise direction (x). This illumination gives us space–time 3D velocity distribution (t, y, z, u ,w) of microbubbles by PTV method. We introduced Taylor’s frozen flow hypothesis to correct the time t’. Statistics from the velocity distribution suggest that impact by turbulent diffusion could not be ignored about microbubble distribution and that microbubbles existed in low-speed and high-speed streaks rather than vortical structures.</p>
収録刊行物
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- 流体工学部門講演会講演論文集
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流体工学部門講演会講演論文集 2018 (0), OS3-3-, 2018
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
- 1390564238093322112
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- NII論文ID
- 130007654215
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- ISSN
- 24242896
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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