Marine Renewable Energy

Dnr:

SNIC 2017/1-1

Type:

SNAC Medium

Principal Investigator:

Claes Eskilsson

Affiliation:

Chalmers tekniska högskola

Start Date:

2017-02-01

End Date:

2018-02-01

Primary Classification:

20705: Marin teknik

Secondary Classification:

20702: Energisystem

Webpage:

Allocation

Abstract

The project aims to investigate the importance of fully nonlinear simulations of marine renewable energy with special focus on floating wave energy converters (fWECs). The power production from fWECs is today computed with linear models. Although fast, the accuracy of these methods close to resonance and in large waves is uncertain. Access to advanced models that includes non-linear effects of e.g. viscosity, over-topping and breaking waves is therefore vital for improving device performance without costly field trials. To simulate real sea states in CFD is a computationally very demanding task due to long-time (1000 wave periods) unsteady simulations and access to HPC resources is vital for the success of the project. The allocation will be used mainly for two ongoing projects: “Including Nonlinear and Viscous Effects when Modelling the Performance of Wave Energy Converters” supported by the Swedish Energy Agency and “Multi­fidelity Decision Making Tools for Wave Energy Systems” supported by OceanEra-Net. In addition, the allocation will be used in the ongoing development of a new fully nonlinear wave model based on spectral elements implemented in nektar++.