CAJ | 학술논문

文章利用多领域边界元素法(Multi-domain BEM)建立一套数值模式,探讨波浪入射复合式帷幕墙式防波堤(Composite Curtainwall-Pile Breakwater, Composite CPB)消浪特性.一般传统帷幕墙防波堤(CPB)是由翼板式(curtain or skirt)防波堤与群桩式(piles)防波堤组合而成,适用于保护较小港区.所谓"复合式帷幕墙"防波堤即结合传统帷幕墙加上潜没式水平孔隙板组合而成,希望能将两者功能充分发挥出来.经由数值计算结果显示采用复合式帷幕墙可以增加对长波的消能效果,大幅降低反射率、透过率、无因次波力及相对溯升高,且当波浪斜向入射的角度越大消能效果越明显.
문장이용다영역변계원소법(Multi-domain BEM)건립일투수치모식,탐토파랑입사복합식유막장식방파제(Composite Curtainwall-Pile Breakwater, Composite CPB)소랑특성.일반전통유막장방파제(CPB)시유익판식(curtain or skirt)방파제여군장식(piles)방파제조합이성,괄용우보호교소항구.소위"복합식유막장"방파제즉결합전통유막장가상잠몰식수평공극판조합이성,희망능장량자공능충분발휘출래.경유수치계산결과현시채용복합식유막장가이증가대장파적소능효과,대폭강저반사솔、투과솔、무인차파력급상대소승고,차당파랑사향입사적각도월대소능효과월명현.
The purpose of the present study is to present a numerical model(Multi-domain BEM)developed to predict the hydrodynamic performance characteristics of water wave with composite curtainwall-pile supported breakwaters (Composite CPB). A conventional curtainwall-pile supported breakwaters(CPB) may be a useful alterna-tive to gravity-type breakwaters, for protecting small craft harbors. The composite CPB consist of a conventional CPB and a submerged horizontal porous plate. This is expected to give the combined benefits of both curtainwall-pile supported breakwaters and submerged horizontal porous plate. Numerical results show that the composite CPB increases the effect of energy dissipation and reduces the reflection coefficient, the transmission coefficient, the di-mensionless wave force and relative wave run-up, the effect is obvious with the larger incident angle of oblique wave.