Spectral waves

Analysing and predicting wind-generated waves in offshore and coastal areas

Wave modelling is indispensable in a large number of contexts related to activities offshore and in coastal regions. In the design of structures, accurate assessment of wave conditions is of major importance. Sediment transport is also to a large extent caused by wave induced currents. Thus, knowledge of wave climate is necessary in order to design solutions to challenges, such as coastal erosion or harbour sedimentation.

The spectral wave module, MIKE 21 SW, is a state-of-the-art spectral wind-wave model. The module enables you to simulate growth, decay and transformation of wind-generated waves and swells in offshore and coastal areas. The model works in flexible meshes, which makes it particularly well-suited to handle variable spatial resolution in the model domain. The model includes the main physical phenomena, for example wave-wave interaction, white-capping, dissipation, refraction and shoaling.

The spectral wave module in MIKE 21 enables you to model:

  • Design wave conditions for offshore, coastal and port structures
  • Accurate assessment of wave loads
  • Simultaneous wave predictions and analysis
  • Calculation of sediment transport determined by wave conditions and currents


  • High-resolution boundary and depth-adaptive mesh
  • User-friendly - all features supported by menus, manuals and examples
  • Includes a wealth of tools to enhance productivity
  • Efficient parallelisation techniques for high performance computing
  • Seamless integration for coupled modelling, for example with hydrodynamic and sediment transport modelling
  • Instationary and quasi–stationary solutions