Abstract
Existing methods, such as Discrete Integration Algorithm (DIA) or Multiple DIA (MDIA) for evaluating Boltzmann integral to assess the nonlinear energy transfer within a given energy spectrum at a given location, do not account for all the contributing wave resonating quadruplets (QPs) for want of computational ease in the wave models such as WAM and WWIII. By virtue of employing the state-of-the-art Gauss–Legendre Quadrature Method (GLQM), the transfer integral becomes free of singularities, and fast estimation of all the contributing QPs is possible; and hence, this method provides both accuracy and efficiency. It also works for different frequency and angular resolutions of the input spectral grid. In this paper, GLQM is validated with EXACT-NL and WRT methods for a theoretical spectrum. It is then applied to a measured spectrum of a moored buoy of National Institute of Ocean Technology, off Machilipattinam (DS5) in deep waters for evaluating the nonlinear QP interactions based on one-month data during July 2005. A characteristic monthly averaged 1D frequency spectrum has been chosen which represented a double-peaked sea-dominated spectrum. It is then fitted with a theoretical JONSWAP spectrum with 99.5% confidence. The nonlinear energy transfer rate (Snl) between the higher and lower frequencies of this fitted spectrum has been evaluated using GLQM and are quantified. The nonlinear coupling between the sea and swell parts is found to be absent as the ratio of the swell and sea frequencies is less than 0.6 (Masson in J Phys Oceanogr 23:1249–1258, 1993 [1]). Few hypothetical cases have been studied to understand Snl behaviour further.
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References
Masson D (1993) On the nonlinear coupling between swell and wind waves. J. Phys. Oceanogr. 23:1249–1258
Hasselmann K, Hasselmann S (1981) A symmetrical method of computing the non-linear transfer in a gravity wave spectrum. Hamburger Geophys Einzelschriften 52
Webb, D. J.: Non-linear transfers between sea waves. Deep Sea Res 25:279–298
Hasselmann S, Hasselmann K (1985) Computations and parameterizations of the nonlinear energy transfer in a gravity-wave spectrum. Part I: A new method for efficient computations of the exact nonlinear transfer integral. J Phys Oceanogr 15:1369–1377
Hasselmann S, Hasselmann K, Komen GK, Janssen P, Ewing JA, Cardone V (1988) The WAM model—a third generation ocean wave prediction model. J Phys Oceanogr 18:1775–1810
Tracy BA, Resio DT (1982) Theory and calculation of the nonlinear energy transfer between sea waves in deep water. WIS Technical Report, 11. US Army Engineer Waterways Experiment Station, Vicksburg, Mississippi, USA, pp 47
Resio DT, Perrie W (1991) A numerical study of nonlinear energy fluxes due to wave-wave interactions. Part 1: Methodology and basic results. J Fluid Mech 223:609–629
Van Vledder GPh (2006) The WRT method for the computation of nonlinear four-wave interactions in discrete spectral wave models. Coastal Eng 53:223–242
Resio DT, Perrie WA (2008) A two-scale approximation for efficient representationof nonlinear energy transfers in a wind wave spectrum. Part I: Theoretical development. J Phys Oceanogr 38:2801–2816
Prabhakar V, Pandurangan J (2006) A quadrature method for computing nonlinear source term due to wave-wave interactions. Curr Sci 90(6):812–817
Prabhakar V, Pandurangan J (2006) A polar method for obtaining wave resonating quadruplets in finite depths. Ocean Eng 33(6):1044–1055
Hasselmann K (1962) On the non-linear energy transfer in a gravity-wave spectrum: Part 1. General theory. J Fluid Mech 12:481–500
Samiksha SV, Vethamony P, Aboobacker VM, Rashmi R (2012) Role of south Indian Ocean swells in modulating the north Indian Ocean wave climate through modelling and remote sensing. Geophys Res Abstr 14:EGU2012-714
Torsethaugen K (1993) A two peak wave spectral model. In: The 12th International Conference on Offshore Mechanics and Arctic Engineering, 2, pp 175–180, ASME
Gabin WG (2015) Wave bimodal spectrum based on swell and wind sea components. IFAC-PapersOnline 48–16:223–228
Glejin J, Sanil Kumar V, Amrutha MM, Singh J (2016) Characteristics of long-period swells measured in the near shore regions of eastern Arabian Sea. Int J Naval Archit Ocean Eng 8:312–319
Acknowledgements
This work is a part of the research project (Sanction No. 25 (0275)/17/EMR-II) funded by CSIR, New Delhi, India, to the third author. The authors thank INCOIS and MOES for providing the moored buoy data. We thank the Director, Dr. S.S.C. Shenoi and the Group Head of CEE group Dr. M. V. Ramanamurthy, for giving an opportunity to conduct the work. We thank the technical and scientific staff who assisted in the field data collection.
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Kamalakannan, M., Kalyani, M., Prabhakar, V., Jena, B.K., Venkatesan, R. (2019). Assessment of Nonlinear Quadruplet Interactions for Measured Spectra in Deep Waters on the East Coast of India Through Gauss–Legendre Quadrature Method. In: Murali, K., Sriram, V., Samad, A., Saha, N. (eds) Proceedings of the Fourth International Conference in Ocean Engineering (ICOE2018). Lecture Notes in Civil Engineering, vol 22. Springer, Singapore. https://doi.org/10.1007/978-981-13-3119-0_53
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