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SWASH is a general-purpose numerical tool for simulating unsteady, non-hydrostatic, free-surface, rotational flow and transport phenomena in coastal waters as driven by waves, tides, buoyancy and wind forces. It provides a general basis for describing wave transformations from deep water to a beach, port or harbour, complex changes to rapidly varied flows, and density driven flows in coastal seas, estuaries, lakes and rivers.

SWASH Web Site


  • non-hydrostatic wave-flow model
  • suitable for small-scale coastal and large-scale ocean applications
  • includes user-friendly pre- and post-processing
  • portable to many operating systems (e.g. Windows, Linux and Mac)
  • no need to install other packages or special libraries (e.g. PETSc, HYPRE)
  • source code is highly flexible, accessible and easily extendible
  • better performance is achieved on multi-core CPUs using MPI

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Additional Project Details



Intended Audience

Advanced End Users, Developers, Education, Engineering, Science/Research

User Interface

Command-line, Console/Terminal

Programming Language



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