수중 폭발로 유발된 해일의 발생 및 전파 특성 수치해석 = Numerical Simulation of Tsunami Generation and Propagation Induced by Underwater Explosions

다국어 초록 (Multilingual Abstract)

This study analyzed the generation and propagation characteristics of tsunamis induced by underwater explosions using numerical simulation, aiming to provide fundamental data for assessing potential damage to maritime structures. A two-phase analysis was performed using the Coupled Eulerian-Lagrangian (CEL) technique in ABAQUS. In Phase 1, the water column size (height and equivalent width ) was quantified based on explosion depth for a 10 kton TNT equivalent explosion, confirming that the water column height increased with depth. Phase 2 modeled tsunami propagation using the dam-break principle and derived a regression equation to predict the maximum coastal wave height based on the initial water column dimensions.The simulation results predicted a maximum wave height of up to 32m and an average flow velocity of 30 m/s at the coast. This quantitative data provides essential information for disaster preparedness and damage assessment of key maritime structures such as cable-stayed bridges.