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Spectral AB Simulations for Coastal and Ocean Engineering Applications

  • R. Kurnia
  • P. Turnip
  • E. van GroesenEmail author
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 23)

Abstract

For simulating phase-resolved waves in large coastal and oceanic areas, as well as in confined coastal areas and ports, efficient, stable and accurate Boussinesq type of equations for irrotational flows are much desired. Results can also be used as input for CFD calculations on smaller domains when viscous and vorticial effects need to be included. In this contribution, we present examples of recent results using the AB (Analytic Boussinesq) model that has been developed based on consistent modelling of the Hamiltonian formulation of free surface waves. The pseudo-spectral AB code with various order of nonlinearity can deal with breaking waves and with spatial inhomogeneities such as bathymetry and harbour walls with fully or partially reflecting walls and breakwaters. A separate Radar Module can reconstruct and predict phase-resolved waves from radar images, and a Ship Module can deal with fully coupled wave–ship–structure interactions. In this paper, we illustrate the performance of simulations for three application areas: wave tank experiments, incoming waves in a harbour with deep access channel, and extreme, freak waves in Draupner seas as introduced in van Groesen et al., OEME 2017.

Keywords

Hamiltonian Boussinesq wave modelling Harbour waves Freak waves Wavetank simulations Analytic Boussinesq model 

Notes

Acknowledgements

We are grateful for the use of data of measurements at TUD and Deltares in The Netherlands, and for information about the spectrum used for the Draupner seas from the European Centre for Medium-Range Weather Forecasts, Reading, UK. Riam Badriana contributed to simulations for the access channel. R.K. was partly funded by the Netherlands Organization for Scientific Research NWO, Technical Science Division STW Project 11642.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.LabMath-IndonesiaBandungIndonesia
  2. 2.University of TwenteEnschedeThe Netherlands

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