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초록
In this study, the effects of urban areas against flood waves due to a dam failure were numerically investigated based on the two laboratory experiments and the predicted water surface elevations at specific points showed good agreement with available measurements. In the first experiment, a relatively high water depth and the delay effect of flow at the front of urban areas are observed. The urban areas may become a large obstacle against smooth propagation of flood wave. In the second one, as the inflow increases, moreover, the water surface elevations can be classified into abruptly decreasing portion and slowly decreasing portion, and the first arrival time to the front of urban area is decreasing with the increasing inflow.
키워드
Flood wave; Shallow-water equations; Laboratory experiment; Dam failure; Finite volume method.; 홍수파; 천수방정식; 수리모형실험; 댐 붕괴; 유한체적법; Flood wave; Shallow-water equations; Laboratory experiment; Dam failure; Finite volume method.
- 제목
- 도시지역을 관통하는 홍수파의 특성에 관한 수치적 연구 (2) : 적용 및 분석
- 제목 (타언어)
- A Numerical Study on Characteristics of Flood Wave Passing through Urban Areas (2) : Application and Analysis
- 저자
- 정우창; 조용식; 이진우
- 발행일
- 2010-02
- 저널명
- 한국방재학회논문집
- 권
- 10
- 호
- 1
- 페이지
- 65 ~ 72