Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5019913 | Theoretical and Applied Mechanics Letters | 2017 | 5 Pages |
â¢Added mass, radiation damping and exciting force are calculated using a COMSOL model.â¢The hydrodynamic parameters are compared to parameters from WAMIT.â¢The equations of motion for a WEC are solved to find buoy movement and line force.â¢Force and motion are compared to experimental offshore data, showing good agreement.
When designing a wave power plant, reliable and fast simulation tools are required. Computational fluid dynamics (CFD) software provides high accuracy but with a very high computational cost, and in operational, moderate sea states, linear potential flow theories may be sufficient to model the hydrodynamics. In this paper, a model is built in COMSOL Multiphysics to solve for the hydrodynamic parameters of a point-absorbing wave energy device. The results are compared with a linear model where the hydrodynamical parameters are computed using WAMIT, and to experimental results from the Lysekil research site. The agreement with experimental data is good for both numerical models.