方向分布对波浪谱在地形水流影响下折射的影响

THE INFLUENTE OF DIRECTIONAL ENERGY SPREAD ON THE RETRACTION OF WAVE SPECTRUM UNDER THE ACTION OF BITH CURRENT AND SEA BED SEA BED

本文计算分析了 Pierson-Moskowitz 谱、JONSWAP 谱与 Bretschnei—der-光易谱在不同地形、水流与主波方向影响下的折射在是否计及波谱能量的方向分布的影响,计算表明波能的方向分布对于谱特征波高值及波能传播的平均方向都有不可忽视的影响。

In this paper the retraction of pierson-Moskowitz Spectrum,and Bretsch- enider-Mitsuyasu Spectrum was analysed and calculated with the influence of wave directionsl energy spread taken into consideratin.Itis indicated by the author's calculation that the influenoe of directional energy spread on the refracted wave chracteristic value as well as the mean direction ofrefracted wave propagation can be ignored.