In this study, the flow characteristic analysis at the curved-channel of the actual channel section is compared and reviewed using the 2D RMA-2 model and the 3D FLOW-3D model. the curve section with curve rate 1.044 in the research section is analyzed applying the frequency of he project flood of 100 years. According to the result, the issue for the application of the FLOW-3D Model’s three-dimensional numeric analysis result to the actual river is found to be reviewed with caution. Also, application of the 3D model to the wide basin’s flood characteristic is determined to be somewhat risky. But, the applicability to the hydraulic property analysis of a partial channel section and the impact analysis and forecast of hydraulic structure is presumed to be high. In addition, if the parameters to reflect the vegetation of basin and the actual channel, more accurate topological measurement data and the topological data with high closeness to the current status are provided, the result with higher reliability is considered to be drawn.

Abstract
 1. 서 론
 2. 모형의 기본이론
  2.1. 2차원 RMA-2 모형의 개요
  2.2. 3차원 FLOW-3D 모형의 개요
 3. 모형의 적용 및 분석
  3.1. 연구대상지역의 선정 및 자료 구축
  3.2. 지형구축 및 매개변수의 검․보정
  3.3. 경계조건
  3.4. 2․3차원 모형의 비교 및 고찰
 4. 결 론
 참 고 문 헌

• 안승섭(경일대학교 건설공학부) | Seung-Seop Ahn (School of Construction Engineering, Kyungil University)
• 정도준(국립방재연구원) | Do-Joon Jung (National Disaster Management Institute)
• 이상일(경일대학교 토목공학과 대학원) | Sang-Il Lee (Department of Civil Engineering, Kyungil University) Corresponding author
• 김위석(경일대학교 토목공학과 대학원) | Wi-Seok Kim (Department of Civil Engineering, Kyungil University)