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논문 기본 정보

자료유형
학술저널
저자정보
김형준 (부산대학교) 김종무 (부산대학교) 김재홍 (부산대학교) 정광효 (부산대학교) 이강남 (부산대학교)
저널정보
대한조선학회 대한조선학회 논문집 대한조선학회논문집 제60권 제2호(통권 제248호)
발행연도
2023.4
수록면
120 - 134 (15page)
DOI
10.3744/SNAK.2023.60.2.120

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초록· 키워드

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In this study, hydrodynamic characteristics of dam break flow were investigated by a series of experiments. The experiments were performed in a 2-D rectangular flume with obtaining instantaneous images of dam break flow to capture the free surface elevation, and pressure distributions on vertical wall and bottom of the flume. The initial water depth of the dam break flow was changed into 3 different heights, and the gate opening speed was changed during the experiments to study the effect of the gate speed in the dam break flow. Generation of dam break phenomena could be classified into three stages, i.e., very initial, relatively stable, and wall impact stages. The wall impact stage could be separated into 4 generation phases of wall impinge, run-up, overturning, and touchdown phases based on the deformation of the free surface. The free surface elevation were investigated with various initial water depth and compared with the analytic solutions by Ritter (1892). The pressures acting on the vertical wall and bottom were provided for the whole period of dam break flow varying the initial water depth and gate open speed. The measurement results of the dam break flow was compared with the hydrodynamic characteristics of green water phenomena, and it showed that the dam break flow could overestimate the green water loading based on the estimation suggested by Buchner (2002).

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1. 서론
2. 실험 조건 및 기법
3. 실험 결과
4. 결론
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