A finite element method for the solution of the up-to-second-order wave diffraction-radiation problem in the time-domain is proposed. The solver has been validated against experimental data available for the HiPRWind semisubmersible platform (designed for floating wind turbines). To perform the validation, the wave diffraction-radiation solver is coupled to a body dynamics and mooring solvers in the time-domain. The HiPRWind movements and mooring forces have been compared for a large number of test cases, including decay tests, and bichromatic waves. Good agreement has been found for body movements and mooring forces.
This presentation was held at the MARINE congress on May 15th, 2017.
 Servan-Camas, B. and García-Espinosa, J. Accelerated 3D multi-body seakeeping simulations using unstructured finite elements. J Comput Phys 2013; 252:382e403.
 Servan-Camas, B. A time-domain finite element method for seakeeping and wave resistance problems. School of Naval Architecture and Ocean Engineering, Technical University of Madrid; 2016 [Doctoral thesis]. http://oa.upm.es/39794/1/BORJA_SERVAN_CAMAS.pdf
 Gutiérrez-Romero, J.E., Serván-Camas, B., García-Espinosa, J. and Zamora-Parra, B. Non-linear dynamic analysis of the response of moored floating structures. Marine Structures 2016; 49:116-137.
 Compassis. SeaFEM Theory Manual. 2016. Retrieved from http://www.compassis.com/downloads/Manuals/SeaFEM_Tutorials.pdf