• Simulations

    Tension Leg Platform (TLP) structure in irregular waves:

  • Time domain seakeeping analysis of a multi-body device:

  • Sea behaviour of a boat through irregular waves:

    (cortesy of Isonaval )

  • TLP structure for an offshore wind turbine:

  • Seakeeping analysis of a 2.3 MW Spar-type floating wind turbine:

  • Seakeeping simulation of Tension Leg Platform (TLP) structure for an offshore wind turbine:

    Watch the video

  • Simulation of an Oscillating Water Column device:

    Watch the video

  • Simulation of a turning cycle in waves of a Surface Effect Ship (SES), courtesy of CIMNE:

    Watch the video

  • Simulation of a Surface Effect Ship (SES) with rigid seals in still water, courtesy of CIMNE for ONR:

    Watch the video

  • Bow seal-water interaction in the simulation of a Surface Effect Ship with rigid seals, courtesy of CIMNE for ONR:

    Watch the video


SeaFEM is a suite of tools for the computational analysis of the effect of waves, wind and currents on naval and offshore structures, as well as for maneuvering studies. SeaFEM applications include ships, spar platforms, FPSO systems, semi- submersibles, TLPs, marine wind turbines and ocean energy harnessing devices.

SeaFEM offers a state of the art solver developed for the most realistic seakeeping simulations of 3D multi-body radiation and diffraction problems, by solving potential flow equations in the time domain, using the finite element method on unstructured meshes. SeaFEM features the latest technology for solving first and second order diffraction-radiation equations with real sea spectra.

SeaFEM has been developed in collaboration with the International Center for Numerical Methods in Engineering, and is completely integrated in the comprehensive simulation environment, Tdyn, developed by Compass.

SeaFEM features unique capabilities for global performance analysis of moored and/or connected systems subject to random sea states. It includes built-in multi-segment quasi-static elastic-catenary and FEM dynamic cable models for the most realistic analyses of mooring systems.

SeaFEM's multi-body functionality offers a rich range of connections between bodies, including rotation, line and plane constraints, rotation and translation links, and rigid body, ball, revolute, cylindrical and prismatic joints.

SeaFEM allows seamless communication of the hydrodynamic forces to the structure. Furthermore, a unique hydroelasticity analysis GUI allows performing structure-waves interaction studies for strength assessment of the design. This capability is powered by the cutting-edge FEM technology available in Tdyn’s structural solver, RamSeries.

Thanks to its advanced pre-processing capabilities, based on Tdyn suite’s GUI, SeaFEM can easily model complex geometric structures with a best-in-class model preparation time. Additionally, SeaFEM can import standard CAD files, and has direct connection with some popular CAD packages. Furthermore, SeaFEM offers a wealth of intuitive visualization capabilities, delivering a flexible way for analyzing the results, and driving faster decisions with confidence.

More detailed information about SeaFEM features and system requirements can be found at SeaFEM Brochure and at the support page. Furthermore, here can be found a comparative table of the capabilities of SeaFEM and other seakeeping commercial tools.

Compass offers free non-commercial licences of SeaFEM calculation module. The terms of this free licence can be found here. To request a free non-commercial copy of SeaFEM, please send the license agreement signed by standard mail or fax, or digitally signed by email to Compass. Note that SeaFEM non-commercial requires a valid licence of the pre/postprocessor system GiD.

The latest SeaFEM version can be download from here. This version is free, but limited in the number of mesh nodes that can be generated. A one month trial password for activating all the capabilities for demo purposes can be obtained at our password page.