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논문 기본 정보

자료유형
학술저널
저자정보
진승환 (한국해양과학기술원 해양재난⋅재해연구센터) 김동하 (한국해양과학기술원 해양재난⋅재해연구센터) 임학수 (한국해양과학기술원 해양재난⋅재해연구센터) 이희준 (한국해양과학기술원 해저활성단층연구단)
저널정보
한국연안방재학회 한국연안방재학회지 한국연안방재학회지 제8권 제4호
발행연도
2021.10
수록면
267 - 274 (8page)
DOI
10.20481/kscdp.2021.8.4.267

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초록· 키워드

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The Dongsam seawater stream on a reclaimed land flows by tidal forcing. The flow in generally slow, especially in the central portion of the stream because the outflow and inflow each occurs at both ends of the stream simultaneously. As a result, sediments accmulate constantly with the deteorating water quality. In this study, field observation was conducted using Aquadrifter and Aquadopp and analyzed for the analysis of the flow velocity in the stream. The computational fluid dynamics (CFD) modeling was run with and without Seawater Stream Floodgate to predict the variability of the flow. The flow velocity of the Dongsam Seawater Stream was recorded in the range of 0.01 ~ 0.13 m/s, and the tidal range was within 1.0 m. According to the simulation, the flow velocity could increase remarkably with two floodgates used to force the stream to flow unidirectionally (toward Korea Maritime & Ocean University). The flow velocity change rate at each point is recorded -97 ~ 638% at P1 (front of Malfunction Floodgate near Busan Int. Cruise Terminal), -89 ~ 659% at P2 (back of Malfunction Floodgate near Busan Int. Cruise Terminal), -100 ~ 1198% at P3 (central channel), and at P4 (toward Korea Maritime & Ocean University) was -100 to 1163%, and Case III-a showed the largest flow velocity rate increase in the central part. Therefore, if two Floodgates are installed and flowed out toward Korea Maritime & Ocean University, the flow velocity rate of the Stream can be increased.

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