홍수지도 제작을 위한 홍수범람정보의 3차원 가시화

• 영문명: Three-Dimensional Visualization of Flood Inundation for Local Inundation Map
• 발행기관: 한국방재학회
• 저자명: 이진우 김형준 조용식 Lee, Jin-Woo Kim, Hyung-Jun Cho, Yong-Sik
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2008년, 179~182쪽, 전체 4쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2008.02.28

영문 초록

This study simulated the flood inundations of the Nakdong River catchment running through Yangsan, a small city located in the south eastern area of Korea by using the depth averaged two-dimensional hydrodynamic numerical model. The numerical model employs the staggered grid system including moving boundary and a finite different method to solve the Saint-Venant equations. A second order upwind scheme is used to discretize the nonlinear convection terms of the momentum equations, whereas linear terms are discretized by a first order leap-frog scheme(Cho and Yoon, 1998). The numerical model was applied to a real topography to simulate the flood inundation of the Yangsan basin. The numerical results for urban district are visualized in three dimension. These results can be essentially utilized to construct the three dimensional inundation map after building the GIS-based database in local public organizations in order to protect the life and property safely.

키워드

Saint-Venant equation inundation moving boundary staggered grid