EFFECTS OF THE DIRECTION OF WANDO OPENING IN OPEN CHANNEL FLOW ON EVACUATION BEHAVIOR OF <i>CANDIDIA TEMMINCKII</i>
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- ONITSUKA Kouki
- 九州工業大学大学院 建設社会工学研究系
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- AKIYAMA Juichiro
- 九州工業大学 建設社会工学科
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- TAKEDA Tomohide
- 清水建設株式会社
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- JOJI Kento
- 東急建設株式会社
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- UCHIYAMA Ryosuke
- 株式会社あとらす二十一
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- IZUMI Kosuke
- 九州工業大学大学院 工学府建設社会工学専攻
Bibliographic Information
- Other Title
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- わんど開口部の向きがカワムツの避難行動に及ぼす影響
- ワンドカイコウブ ノ ムキ ガ カワムツ ノ ヒナン コウドウ ニ オヨボス エイキョウ
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Abstract
It is important to secure evacuation space for fish during floods to create comfortable environment. Evacuation area includes wando, groyne and vegetation. Wando is a dead water region connecting the main current of a river. However, little is known about the relationship between evacuation behavior of fish and geometric shape of wando. In this study, an investigasion on evacuation behavior of Candidia temminckii was conducted under the condition that the direction of wando opening and also the flow velocity are changed. It was found that the low velocity area increased when wando opening was faced downstream, and this area became evacuation area for Candidia temminckii. Besides, it was shown that Candidia temminckii swim facing mainly the sidewall or downstream directions when the wando opening was faced downstream.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 74 (7), III_463-III_469, 2018
Japan Society of Civil Engineers
