||The Performance Assessment of Wave and Tidal Array Systems (PerAWaT) project, launched in October 2009 with £8m of ETI investment. The project delivered validated, commercial software tools capable of significantly reducing the levels of uncertainty associated with predicting the energy yield of major wave and tidal stream energy arrays. It also produced information that will help reduce commercial risk of future large scale wave and tidal array developments.
This document describes the scale model experiments required to investigate array scale blockage and wake effects in order to develop the mathematical models used to predict the influenced flow field in and around tidal turbine arrays. Details of the scaling rationale, the experimental equipment and facilities and the proposed testing programme are described. The purpose of the scale model experiments described here is to provide experimental data to develop and validate the mathematical models that will be developed as part of WG3WP4. This includes measurement of turbine performance and of wake characteristics both downstream of individual devices and downstream of an array of devices. The programme of tests improved understanding of how bounding surface proximity influences both turbine performance and wake structure.