Introduction

With the WS Reflection Analysis Module it is possible to perform a wave reflection analysis in connection with flume model tests. The analysis requires measurements from two or more wave gauges as basis for a fre­quency domain separation of the measured wave time series to provide an average spectrum of the incident and reflected waves.

The reflection analysis calculates the following spectra and properties:

1.       Spectrum for incident waves

2.       Spectrum for reflected waves

3.       Spectrum at the wave gauges (incident and reflected)

4.       Reflection function

5.       Average reflection coefficient

6.       Spectral values

The frequency domain separation handles concurrent recordings from sev­eral wave gauges as it solves the governing equations by use of a least squares fit approach. The basic method is described by Mansard & Funke (1980, 1987) and extended by Zelt & Skjelbreia (1992).

Figure 7.1           The figure shows incident and reflected spectra calculated from data acquired during physical model testing.

Figure 7.2           The figure shows the reflection function calculated from data acquired during physical model testing.