Estimating Directional Distribution for Co-Existent Field of Incident and Reflected Waves

来源 :China Ocean Engineering | 被引量 : 0次 | 上传用户:gbnew
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In the nearshore,the wave field contains reflected and incident waves in which there iscorrelation between their phases due to the effect of reflection by some obstacles.Based on the extendedeigenvector method(EEV)derived by Guan et al.,a modified method(MEEV)is proposed as a generaland practical approach to estimating directional spectra for the co-existent field of incident and reflectedwaves and a formula is given for direct calculation of the reflection coefficient.The results of numericalsimulations show that MEEV is superior to EEV in resolution power,and the computed reflectioncoefficient agrees well with the real value within a certain range of incident angle. In the nearshore, the wave field contains reflected and incident waves in which there is therecorrlation between their phases due to the effect of reflection by some obstacles.Based on the extendedeigenvector method (EEV) derived by Guan et al., A modified method (MEEV) is proposed as a generaland practical approach to estimate directional spectra for the co-existent field of incident and reflected waves and a formula is given for direct calculation of the reflection coefficient. The results of numerical simulations show that MEEV is superior to EEV in resolution power, and the computed reflectioncoefficient agrees well with the real value within a certain range of incident angle.
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