Project outline:
The aim of this collaboration is to make a joint study that will focus on comparing the Wave Dragon tank test model, 1:50 scale model, with the Nissum Bredning 1:4,5 scale prototype. We will verify the wave-to-wire schemes of both models in order to be able to reproduce their values in a dedicated Wave Overtopping Device Software, called WopSim. Different parameters will have to be taken into consideration, which are dependent on the different environment or related to up-caling issues. This collaboration work would be a first experience for the both of us and will provide us with a lot of new experiences from hands-on work on the 1:4,5 model to applying the theory to reality, such as the scaling laws, to organising urselves in order to achieve our objectives. We expect this research study to end up in a qualitative joint paper.
Publication at ICOE 2010:
Modelling of the Overtopping Flow on the Wave Dragon Wave Energy Converter
Arthur Pecher1, Stefano Parmeggiani1, J.P. Kofoed1 and E. Friis-Madsen2
1: University of Aalborg, Denmark
2: Wave Dragon Aps
Abstract: The Wave Dragon is a floating slack-moored Wave Energy Converter of the overtopping type, which is facing now the last phase of development before the commercial exploitation: the deployment of a full-scale demonstrator. In this phase a modelling tool allowing for accurate predictions of the performance of the device at different scaling ratios and locations of interest is strongly required. The overtopping, depending on the local conditions of the deployment site, is identified as the right stage to be considered in the modelling. The existing formulation of the overtopping model needs to be updated in order to represent more accurately the effects of the geometrical features and stability of the device and of the local conditions and non-scalable parameters on the overtopping flow. The paper analyses the conditions at which the present formulation has been established and proposes a strategy for its future development in which the effect of each factor influencing the overtopping flow is separately investigated and described by a dedicated parameter. This will broaden the applicability of the model, allow for more accurate predictions on the performance of the device and help to improve the efficiency of its control.
- Contact information
- Arthur Pecher and Stefano Parmeggiani
- Contact email
- icis@inore.org
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