Harmonic generation past a submerged porous step

I J Losada, Michael D Patterson, M A Losada

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Abstract

Experiments were conducted in a wave flume to study the differences between harmonic evolution of monochromatic waves as they propagate over a submerged impermeable or porous step under non-breaking conditions. Results are used as a preliminary analysis to establish some engineering design criteria on harmonic generation on submerged porous structures. The root-mean-squared wave height evolution is also studied and compared to linear models as a first approximation. It is shown that porous structure increases the effective relative depth and decreases the relative wave height, resulting in a lower Ursell number and a lower chance to generate harmonics. The effective water depth over a step as defined in the paper, provides information to evaluate the potential harmonic generation.
Original languageEnglish
Pages (from-to)281-304
Number of pages24
JournalCoastal Engineering
Volume31
Issue number1-4
DOIs
Publication statusPublished - 1997

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Losada, I. J., Patterson, M. D., & Losada, M. A. (1997). Harmonic generation past a submerged porous step. Coastal Engineering, 31(1-4), 281-304. https://doi.org/10.1016/S0378-3839(97)00011-2

Harmonic generation past a submerged porous step. / Losada, I J; Patterson, Michael D; Losada, M A.

In: Coastal Engineering, Vol. 31, No. 1-4, 1997, p. 281-304.

Research output: Contribution to journalArticle

Losada, IJ, Patterson, MD & Losada, MA 1997, 'Harmonic generation past a submerged porous step', Coastal Engineering, vol. 31, no. 1-4, pp. 281-304. https://doi.org/10.1016/S0378-3839(97)00011-2
Losada, I J ; Patterson, Michael D ; Losada, M A. / Harmonic generation past a submerged porous step. In: Coastal Engineering. 1997 ; Vol. 31, No. 1-4. pp. 281-304.
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