Specialist Committee on Hydrodynamic Testing of Marine Renewable Energy Devices: final report and recommendations to the 27th ITTC
Day, S and Penesis, I and Babarit, A and Fontaine, A and He, Y and Kraskowski, M and Murai, M and Salvatore, F and Shin, HK, Specialist Committee on Hydrodynamic Modelling of Offshore Renewable Energy Devices, Specialist Committee on Hydrodynamic Testing of Marine Renewable Energy Devices: final report and recommendations to the 27th ITTC, Proceedings of the 27th International Towing Tank Conference, 31 August - 5 September 2014, Copenhagen, Denmark, pp. 1-54. (2014) [Non Refereed Conference Paper]
This report addresses a number of key issues in the physical and numerical testing of marine renewable
energy systems, including wave energy devices, current turbines, and offshore wind turbines.
The report starts with an overview of the types of devices considered, and introduces some
key studies in marine renewable energy research. The development of new ITTC guidelines for
testing these devices is placed in the context of guidelines developed or under development by other
international bodies as well as via research projects. Sites developed around the world for full-scale
testing of Marine Renewable Energy Devices are discussed. Some particular challenges are introduced
in the experimental and numerical modelling and testing of these devices, including the simulation
of Power-Take-Off systems (PTOs) for physical models of all devices, approaches for numerical
modelling of devices, and the correct modelling of wind load on offshore wind turbines.
Finally issues related to the uncertainty in performance prediction from test results are discussed.
Definition of the stages of a device test
program – Technology Readiness Level
Summary of testing requirements / challenges
for device type (ocean v tidal current,
rotating v non-rotating, shallow v
deep deployment, rigid mounting v flexible
mooring) and device development
Coupling between model scale, choice of
facility, device type, and experiment stage.
Identification of common error sources associated
with small to field-scale testing
with guidelines on impact on test success,
interpretation of test results and how to
quantify and report measurement error.