모형실험 및 수치 시뮬레이션을 이용한 쌍동형 준설선의 선형 설계에 관한 연구

초록

To develope a hull form of catamaran type dredging vessel, resistance characteristics are investigated to find the interaction effect of waves between the two hulls. The fore body shape is simplified as two dimensional wedge shape for the maintenance and disassembly/assembly. Based on MAC method, numerical simulation is performed in staggered variable mesh system. Euler equations of conservation form and continuity equation are applied as governing equations. To verify numerical methods, wave shapes of ship's side are compared with results of model tests. This study is performed as varying wedge shape of the bow and the distance between the two hulls. The wave interaction between two hulls is observed to investigate the relation between the resistance performance and the flow characteristics. Suitable hull form and distance between two hulls are discussed.