Wave Grouping Effect in Irregular Wave Agitation in Harbors
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 115, Issue 3
Abstract
Hydraulic model tests were conducted on two different natural harbors to study the influence of diffraction and reflection of irregular waves compared to regular waves. Two types of reflective walls within one harbor were also tested. Irregular wave trains with different peak frequencies and groupiness factors were generated. These tests have shown that within the limits of the frequency band of the spectral energy density, irregular wave diffraction‐reflection coefficients show less variability and appear to give better information than do the ones obtained from regular wave tests. Outside the frequency range containing most of the energy of the incident wave train, high values of the transfer function were observed in the lower and upper frequency range. However, their energy content was relatively small, and the long wave energy attached to wave grouping could not be attributed to harbor resonance. In the high frequency range, the presence of noise is attributed to the high transfer function estimates.
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References
1.
Bäth, M. (1974). Spectral analysis in geophysics. Elsevier Scientific Publishing Co., Amsterdam, The Netherlands.
2.
Barthel, V., Mansard, E. D. P., Sand, S. E., and Vis, F. C. (1983). “Group bounded long waves in physical models.” Ocean Engrg., 10(4), 261–294.
3.
Bendat, J. S., and Piersol, A. G. (1971). Random data: Analysis and measurement procedures. John Wiley and Sons, Inc., New York, N.Y.
4.
Bendat, J. S., and Piersol, A. G. (1980). Engineering applications of correlation and spectral analysis. John Wiley and Sons, Inc., New York, N.Y.
5.
Biesel, F. (1951). “Étude théorique un appareil à houle.” La Houille Blanche, 6(2), 152–165.
6.
Brigham, E. O. (1974). The Fast Fourier Transform. Prentice‐Hall, Inc., Englewood Cliffs, N.J.
7.
Burcharth, H. F. (1979). “The effect of wave grouping on shore structures.” Coastal Engrg., 2(3), 189–199.
8.
Burcharth, H. F. (1980). “Comparison of nature waves and model waves with special reference to wave grouping.” Proc. 17th Conf. on Coastal Engrg., ASCE, 2992–3009.
9.
Funke, E. R., and Mansard, E. P. D. (1980). “On the synthesis of realistic sea states in a laboratory flume.” Proc. 17th Conf. on Coastal Engrg., ASCE, 2974–2991.
10.
Funke, E. R., and Mansard, E. P. D. (1981). “On the meaning of phase spectra in the Fourier transform of random waves.” Proc. Int. Symp. on Hydrodynamics in Ocean Engineering, Trondheim, Norway.
11.
Goda, Y. (1976). “On wave groups.” Proc. First Int. Conf. on Behaviour of Offshore Structures, Trondheim, Norway, 115–128.
12.
Goda, Y. (1985). Random seas and design of maritime structures. Univ. of Tokyo Press, Tokyo, Japan.
13.
Goda, Y., Takayama, T., and Suzuki, Y. (1978). “Diffraction diagrams for direction random waves.” Proc. 16th Conf. on Coastal Engrg., ASCE, 628–650.
14.
Hasselman, K., et al. (1973). “Measurements of wind‐wave growth and swell decay during the Joint North Sea Wave Project (JONSWAP).” Deutsche Hyd. Zeit, Reithe A, 8(12).
15.
IAHR. (1986). “List of sea state parameters.” Supplement to Bull. No. 52, Int. Assoc., for Hydr. Res. and Permanent Int. Assoc., of Navigation.
16.
Johnson, R. R., Mansard, E. P. D., and Ploeg, J. (1978). “Effects of wave grouping on breakwater stability.” Proc. 16th Conf. on Coastal Engrg., ASCE, 2228–2243.
17.
Kimura, A. (1980). “Statistical properties of random wave groups.” Proc. 17th Coastal Engrg. Conf., ASCE, 2955–2973.
18.
Ouellet, Y. (1985). “Relocalisation du port de Old‐Harry. Étude en modèle réduit de l'agitation due aux vagues.” Rep. GCT‐85‐04, Dépt. de génie civil, Univ. Laval, Québec, Canada.
19.
Ouellet, Y., Drouin, A., and Thériault, I. (1985). “Réaménagement portuaire de Cap‐des‐Rosiers. Étude en modèle réduit de l'agitation due aux vagues.” Rep. GCT‐85‐04, Dépt. de génie civil, Univ. Laval, Québec, Canada.
20.
Rye, H. (1974). “Wave group formation among storm waves.” Proc. 17th Coastal Engrg. Conf., ASCE, 164–183.
21.
Sand, S. E. (1982). “Wave groupiness described by bounded long waves.” Ocean Engrg., 9(6), 567–580.
22.
Thériault, I. (1986). “Effet du groupement des vagues sur l'agitation dans les havres,” thesis presented to the Dépt. de génie civil, Université Laval, Québec, Canada, in partial fulfillment of the degree of Master of Science.
23.
Tuah, H., and Hudspeth, R. T. (1982). “Comparisons of numerical random sea simulations.” J. Wtrway., Port, Coast., and Oc. Engrg., ASCE, 108(WW4), 569–584.
24.
U.S. Army CERC. (1984). Shore protection manual, Vols. I and II, 4th Ed. U.S. Army Coast. Engrg. Res. Center, Vicksburg, Miss.
25.
Wiegert, A. W., and Edwards, E. P. (1981). “Capacitive water level gauges for hydraulic models.” Hydr. Lab. Rep. HY‐222, Nat. Res. Council of Canada, Ottawa.
26.
Willis, D. H, (1979). “Irregular waves in harbor agitation models.” Hydr. Lab. Rep. HY‐202, Nat. Res. Council of Canada, Ottawa.
Information & Authors
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 115 • Issue 3 • May 1989
Pages: 363 - 383
Copyright
Copyright © 1989 ASCE.
History
Published online: May 1, 1989
Published in print: May 1989
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