On the Better Hydrauric Functions of Breakwaters in a Resort

反射墙聚浪作用下的水体交换首先，通过模型试验得出了越浪量大、透波系数小的潜堤有效高度。其次，利用波浪绕射散射理论分析了V型布置反射墙的聚波特性，并与模型试验结果进行了比较。毕竟，发现反射壁对于每个开角具有最有效长度。根据上述结果和波浪共振理论设计的一些基本模型在波浪水槽中进行了试验，发现在与聚波器相连的进水通道中，潜堤处越浪量增加。此外，还研究了抛物喇叭型和指数喇叭型（具有截止频率）反射墙的聚波特性。结果表明，存在小孔的抛物型壁， 关于我们 其中，V型和抛物线型的波浪能收集效率最高，而指数型的波浪能收集效率最低，这是因为存在较多的反射波。防波堤对水体的净化和波浪控制首先，对波浪作用下防波堤的水流和扩散特性进行了理论和实验研究。其次，研究了均匀潮流作用下透空式防波堤的扩散特性。在此基础上，提出了分体式防波堤断面有效间隙的几何形状。在波浪和潮流共同作用下，防波堤附近的扩散系数和弥散系数可以估算出来。通过对复氧系数的估算，发现透空式防波堤对港内水体具有较好的净化效果。在此基础上，提出了由潜堤和窄缝透空堤组成的有效防浪换流堤。少

Water Exchange by Reflection Walls as a Wave ConcentratorFirst, the effective height of submerged breakwaters was found out by model tests, that caused much wave overtopping and had small wave transmission coefficients. Next, wave concentration characteristics of V-arranged reflection walls were analyzed with the wave diffraction-scattering theory, and were compared with results of model tests. After all, it was found that the reflection wall had the most effective length for each open angle. Some basic models which were designed based on the above results and wave resonanec theory were tested in the wave tank, and quantities of wave overtopping were found to be enhanced at the submerged dike in the inlet channel connected to the wave concentrator. Furthermore, characteristics of wave concentration were studied on reflection walls of parabolic horn type and exponential horn type (this type has the cut-off frequency). It was concluded that the parabolic type walls of which forcus existe … More d in the inlet channel had the highest efficiency to collect wave energy, V type and the parabolic type of which forcus located at the inlet mouth had moderate one, and the exponential type had the lowest one due to the existence of much reflected waves.Water Purification and Water Wave Control by BreakwatersFirst, the characteristics of flow and diffusion due to the wave action against a breakwater were examined theoretically and experimentally. Second, the dispersion characteristics of the permeable breakwater were also studied which was installed in the uniform tidal flow. In the results, the effective gap geometry of the cross section was suggested for the split-type breakwater. The values of diffusion and dispersion coefficients in a harbor could be estimated near the breakwater which was exposed to the wave and the tidal flow. And after reaeration coefficients were estimated, Ii was found that the permeable breakwaters were effective to purify the water in the harbor. Furthermore, the effective breakwaters were proposed to control waves and to exchange water, which consisted of a submerged breakwater and a thin slit-type permeable breakwater. Less