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- Jamshidnia Hamidreza
- Division of Energy & Environmental Systems, Graduate School of Engineering, Hokkaido University
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- Tasaka Yuji
- Division of Energy & Environmental Systems, Graduate School of Engineering, Hokkaido University
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- Murai Yuichi
- Division of Energy & Environmental Systems, Graduate School of Engineering, Hokkaido University
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- Takeda Yasushi
- Division of Energy & Environmental Systems, Graduate School of Engineering, Hokkaido University
書誌事項
- タイトル別名
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- 1804 Experimental investigation of flow over a standing baffle using UVP
抄録
Effect of an intermediate standing baffle on the flow structure in a rectangular open channel has been studied by using Ultrasonic Doppler Velocimetry (UVP). Distributions of time-averaged on-axis velocity profiles at different streamwise positions indicate the flow structure of the uprising flow at the upstream of baffle and specifically vortex shedding at the downstream of the baffle. Importantly, comparison of space-dependent power spectra of upstream and downstream sections of the baffle indicates the existence of some peak structures near the baffle's edge for downstream sections which are corresponding to the periodic nature of flow concentrated mainly near the baffle's edge in the spatio-temporal velocity distribution. Such peak structures could not be observed for the upstream sections. For downstream sections mainly the existence of peak values in the space distribution of two frequency modes near the baffle's edge could be confirmed which can be attributed to the vortex shedding.
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 2009 (0), 523-524, 2009
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
- 1390282680860320640
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- NII論文ID
- 110007861421
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- ISSN
- 24242896
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- 本文言語コード
- en
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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