Finite Order Approximation by Moment-Matching is a Matlab application that implements the moment- matching based frequency-domain identification algorithm described in [Faedo, Peña-Sanchez and Ringwood, 2018]. This procedure was primarily developed for marine applications (specifically, wave energy). The identification of both the radiation kernel frequency response and the force-to-motion dynamics of a marine structure can be performed using this tool. For a detailed development of the theory behind this application, and the hypothesis required on the target system to identify, please see:
– N. Faedo, Y. Peña-Sanchez and J. V. Ringwood.Finite-Order Hydrodynamic Model Determination Using Moment-Matching. Ocean Engineering (In Press), 2018.
Please include the previous reference when you use the FOAMM application.
The files required for the use of the FOAMM application.
A manual providing a simple user’s guide to FOAMM.
Please note that the software is offered with no technical support (other than that offered in the manual), but we welcome feedback. Feedback should be sent to COER@mu.ie.
Mathematical models are essential for the development of wave energy converters (WECs), which can be used for the simulation of device motions, power production assessment and model-based control strategies. Despite the limitations of the linear potential flow theory, boundary element method (BEM) codes are the most commonly used tools to generate the hydrodynamic coefficients required to study the behaviour of the WECs.
The open source BEM code NEMOH developed in the Ecole Centrale de Nantes and released in 2014 is a useful tool for the wave energy community, in particular to those who cannot afford the expensive commercial codes. However, the use of commercial codes such as WAMIT is still predominant in the community.
The aim of this project is to evaluate the usefulness of the open source code NEMOH, comparing its outcomes to the outcomes obtained from a more stablished BEM solver WAMIT. The paper presented in the 12th EWTEC conference in Cork, entitled “Using NEMOH for Modelling Wave Energy Converters: A Comparative Study with WAMIT”, presents the comparison between the two solvers. In addition, input files for NEMOH and WAMIT to simulate the different WECs used in the comparison are made available in here.
Using NEMOH for Modelling Wave Energy Converters: A Comparative Study with WAMIT
Paper of a comparative study between the two BEM solvers NEMOH and WAMIT.
Input files for BEM comparison
This archive contains the input files required to perform hydrodynamic simulations using two boundary element method (BEM) solvers for five generic wave energy converters (WECs).