EXPERIMENTAL AND NUMERCAL ANAYSES OF OSCILLATING HYDRAULIC JUMP AT A DROP STRUCTURE WITH A TRENCH
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- YAGI Jumpei
- 神戸大学大学院 工学研究科
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- MURATA Yoshiyuki
- 神戸大学大学院 工学研究科
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- YOSHIMURA Hideto
- みずほリサーチ&テクノロジーズ株式会社
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- FUJITA Ichiro
- 神戸大学 (一財)建設工学研究所
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- NAKAYAMA Keisuke
- 神戸大学大学院 工学研究科
Bibliographic Information
- Other Title
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- トレンチ付き落差工で発生する周期振動跳水に関する画像・数値解析
Abstract
<p> It has been observed that a periodic water surface oscillation ocurrs downstream of a drop structure with a trench at specific hydraulic and geometric conditions. In order to establish a relationship governing the oscillation frequency, a number of experiments using flow visualization and image analysis techniques were conducted. As a result, we proposed a Strauhal number specific to the oscillating hydraulic jump. In addition, a numerical simulations based on SST 𝑘-𝜔 model was executed to successfully simulate time varying oscillating flow comparable to the experiment.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 77 (2), I_871-I_876, 2021
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390572589998536448
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- NII Article ID
- 130008160200
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- ISSN
- 2185467X
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed