AN EFFICIENT METHOD FOR THE REPRODUCTION OF NON-LINEAR RANDOM WAVES
No. 22 (1990), Conference Proceedings
No. 22 (1990)

AN EFFICIENT METHOD FOR THE REPRODUCTION OF NON-LINEAR RANDOM WAVES

Conference Proceedings
https://doi.org/10.9753/icce.v22.%25p
Published 1990-01-29
Gert Klopman
Delft Hydraulics
Peter Jan Van Leeuwen
Delft University of Technology
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Keywords

random waves
nonlinear waves
wave reproduction

How to Cite

Klopman, G., & Van Leeuwen, P. J. (1990). AN EFFICIENT METHOD FOR THE REPRODUCTION OF NON-LINEAR RANDOM WAVES. Coastal Engineering Proceedings, 1(22). https://doi.org/10.9753/icce.v22.%p
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Abstract

For the laboratory study of many random-wave induced phenomena, wave-board control signals according to linear wave theory are not sufficient: apart from bound suband superharmonic waves, spurious free waves are generated. Wave generation according to a higher-order wave theory is necessary in order to suppress these spurious waves. The perturbation method of multiple scales is used to derive formulas for the secondorder wave-board control signal, assuming the carrier-wave spectrum is narrow banded. The resulting algorithm is much faster than the one based on the full second-order theory. Furthermore, the applicability of the narrow-band approximation is indicated for carrier-wave spectra frequently used in coastal and ocean engineering.
https://doi.org/10.9753/icce.v22.%25p
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