An Experimental Verification of Numerical Wave Modeling

Abstract

The classic water-wave theories approximate waveforms and associated motions under certain boundary conditions. Only Airy linear and Stokes’ second and third-order wave theories are capable of accurately describing the range of waves produced in the Maritime Systems Engineering laboratory wave tank. After a suitable wave measurement system is employed, data is generated which can be compared to theoretically predicted values. Computer analysis reveals that smaller waves with less inclined faces tend to be non-symmetrical, short and deformed. Larger, steeper-faced waves compare more favorably to the appropriate theory, although they still exhibit slight abnormalities. Water profile quality and overall wave size range in the test tank could be improved with smoother, less disturbing wave generation.