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Coastal Wave Modelling

BMT has a unique combination of global databases, modelling expertise and experience with engineering design allowing provision of fit-for-purpose operational and extreme conditions in coastal and sheltered areas.

Wave conditions are one of the most important design inputs for coastal structures whether they are for flood protection, part of the infrastructure of ports or shallow water wind farms or oil and gas installations.

The design of a structure depends on the combinations of waves, currents and water levels that it will be subjected to. As these aspects interact with each other and it is not always possible to say in advance which combinations are the most severe, BMT’s experience with working with designers is highly valuable to ensure that data is fit-for-purpose, conservative but not too conservative.

BMT Ship & Coastal Dynamics has considerable experience in-house with application of the following models:

  • WaveWatch III – an ocean scale spectral wave model improved in BMT;
  • SWAN (DUT) - an advanced coastal and regional scale spectral wave model;
  • IDSB (DUT)- a one-dimensional wave model (spectral) used to model infra-gravity waves in the coastal zone. This may be used to provide boundary conditions for wave agitation models.
  • ARTEMIS (part of TELEMAC suite LNH) and PHAROS (Deltares) - wave agitation models for application in sheltered areas. Produce short wave conditions and berths in a harbour and predict long wave resonances in the harbour area;
  • SWASH (DUT) - for simulating water movements around structures and close to shore. It has also been shown to be applicable for prediction of the generation and release of infra-gravity waves and for representing the effect of access channels on wave penetration more accurately than the models above;
  • DINA (BMT) - an in-hour analytical wave model accounting for the diffraction of short-crested waves around detached and long breakwaters and headlands in water of approximately uniform depth.