直立墙前能谱与反射系数计算的谱分析法

Comprehensive Analyses of Energy Spectrum and Reflection Coefficient in front of Vertical Breakwaters

通过波谱分析方法研究了堤前能谱和反射系数的各自分布规律,分析了它们的相互关系,如不考虑反射系数的沿程变动因素,则堤前能谱的实验值与计算值将有较大差异.由于堤前能谱与入射波能谱均可测,因此,可由堤前能谱表达式得到反射系数表达式,并依据该式计算出反射系数在各点处的值.采用青岛海洋大学谱对反射系数进行计算,计算结果与已采用JONSWAP

The distribution rule was investigated of energy spectrum and reflection coefficient by the method of wave spectrum. For some reason,the results by experimental and mathematical method were out of regular allowance without considering influence factor of the reflection coefficient. Because energy spectrum in front of breakwaters and incident waves spectrum were detectable,the reflection coefficient can be derived from the formula of energy spectrum in front of vertical breakwaters; therefore, all reflection coefficient data along the range can be obtained.