Coastal Wave Modeling with SMS


Application:Coastal Modeling
Method:2D Finite Difference
Developer:U.S. Army Corp of Engineers


Why CMS-Wave with SMS?
SMS provides a custom interface to the CMS-Wave model offering a simple way to set model parameters and a graphical user interface to run the model and visualize the results. Gather background data from a variety of sources from GIS to CAD and access online data from numerous databases of maps, images, and elevation data. SMS allows you to interact with models in true 3D taking advantage of optimized OpenGL graphics and to create photo-realistic renderings and animations for PowerPoint, print, and web presentations.

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CMS-Wave Description:
CMS-Wave is a component of the Coastal Modeling System developed by the US Army Corps of Engineers Coastal and Hydraulics Laboratory. CMS-Wave is a two-dimensional wave spectral transformation model that employs a forward-marching, finite-difference method to solve the wave action conservation equation. It is a phase-averaged model, which neglects changes in the wave phase in calculating wave and other nearshore processes from the output wave information. CMS-Wave contains theoretically developed approximations for both wave diffraction and reflection and, therefore, is suitable for conducting wave simulations at coastal inlets. The model operates on a coastal half-plane so primary waves can propagate only from the seaward boundary toward shore. If the seaward reflection option is activated, the model will also perform backward marching for seaward reflection after the forwarding-marching calculation is completed.

CMS-Wave Model Features and Highlights:

  • Wave overtopping and wave runup on beach face
  • Variable rectangular cells
  • Grid nesting
  • Nonlinear wave-wave interaction
  • Impermeable structures