TECHNICAL NOTES
Jan 1, 1986

Unification of Two‐Parameter Energy Spectrum Models

Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 112, Issue 1

Abstract

Various wave energy spectrum models have been suggested in terms of two independent statistical parameters, e.g., significant wave height and a characteristic period. Alternatively, they are represented by a coefficient and the wind speed parameter. A general spectrum model is derived here that encompasses a large class of single peak two parameter wave energy spectrum models including P-M, Bretschneider, ISSC and ITTC. The two independent parameters chosen are the significant wave height and the peak frequency. The relationship of these quantities to other statistical parameters for the different spectrum models is established.

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References

1.
Bretschneider, C. L., “Wave Forecasting,” Handbook of Ocean and Underwater Engineering, J. J. Myers, Ed., Chapt. 11, McGraw‐Hill Book Co., Inc., 1969.
2.
Hasselman, K., et al., “Measurement of Wind‐Wave Growth and Swell Decay During the Joint North Sea Wave Project (JONSWAP),” Deutschen Hydrographischen Zeitschrift, Erganzunscheft, Vol. 13, No. A, 1973.
3.
Mathews, S. T., “A Critical Review of the 12th ITTC Wave Spectrum Recommendations,” Report of Seakeeping Committee, Appendix 9, Proceedings of 13th ITTC, Berlin, Germany, 1972, pp. 973–986.
4.
Ochi, M., and Hubble, E. N., “Six Parameter Wave Spectra,” Proceedings of the 15th Coastal Engineering Conference, ASCE, Honolulu, HI, 1976, pp. 301–328.
5.
Pierson, W. J., and Moskowitz, L., “A Proposed Spectral Form for Fully Developed Wind Seas Based on the Similarity Theory of S. A. Kitaigorodskii,” Journal of Geophysical Research, Vol. 69, No. 24, Dec., 1964, pp. 5181–5203.
6.
Proceedings of the Second International Ship Structures Congress, Delft, The Netherlands, 1964.
7.
Sarpkaya, T., and Isaacson, M. de St.Q., Mechanics of Wave Forces on Offshore Structures, Van Nostrand Reinhold Co., New York, NY, 1981.
8.
“Technical Decisions and Recommendations of the Seakeeping Committee,” Proceedings, 11th, 12th and 13th ITTC, Tokyo, Japan, 1966, Rome, Italy, 1969, and Berlin, Germany, 1972.

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Go to Journal of Waterway, Port, Coastal, and Ocean Engineering
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 112Issue 1January 1986
Pages: 173 - 176

History

Published online: Jan 1, 1986
Published in print: Jan 1986

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Authors

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Subrata K. Chakrabarti, F. ASCE
Dir., Marine Research, CBI Industries, Inc., 1501 North Division St., Plainfield, IL 60544

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