||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 report presents and discusses the results of fully nonlinear potential flow simulations of the regular wave interactions involving a single truncated cylinder and an array of four truncated cylinders.
- The key objectives of this study are to compare the results of fully nonlinear simulations to weakly nonlinear results, in particular in the case of the single cylinder, and to investigate the cylinder excitation forces and cylinder responses in an array of four cylinders subject to regular incident waves.
- The report outlines how these objectives have been met and describes any issues arising from their completion.
- The similarities and differences between the fully nonlinear time-domain solutions and the linear frequency domain solutions are considered in detail.
- A number of validation studies were also conducted in parallel with and as preparation for the completion of the main aimsof the deliverable.
- These case studies contain independent verifications of the fully nonlinear potential flow solver and are included in the report to illustrate the full capabilities of the fully nonlinear approach