Abstract
In this paper, the submerged structure for wave control using a flexible sheet with some springs was proposed. To investigate the characteristics of this structure, the ratio of reflected and transmitted waves was calculated in two-dimensional case, using the boundary element method with three cases of 1, 3, and 5 sheets. When the oscillation of sheet was caused by water waves, the phase difference between water waves and motion of sheet occurred according to wave period. Considering this phase difference in numerical analysis, it was found that analyzed result agreed with experimental results.