TEME - Tidal Energy for Marine Exploration

Access/Technology provider: DLTM, DLTM-HPCIT

End User: University of Strathclyde, UK [Academia]

Dates: 01-06-2021 to 31-10-2021

Goals: This work is about the analysis and design of tidal turbines that can be installed in situ, or very close to the operational site, to quickly recharge autonomous underwater vehicles. The resources were used to run time domain and frequency domain computational fluid dynamic computations about nominal configurations, to design and implement systems for in situ recharging.

The project had the main aim to advance the design of tidal turbine recharging systems for in situ recharging of underwater vehicles, and had the following main objectives:

  • The implementation of new boundary conditions to properly simulate the seabed boundary layer.
  • The run of a series of CFD computation to compare time-domain and frequency domain harmonic balance solutions
  • Analyze the data to get an insight about realistic performance of tidal turbines for the design of in situ recharging stations for underwater vehicles.

The short term objective was to test computational tools and settings to properly simulate working conditions of a small/medium size tidal turbine for the future design optimization phase.

In the allowed time, the results obtained by an open source code (and Ansys CFX) in different conditions have been compared with experimental data as well as other numerical results obtained with different (commercial) codes and settings. The comparison shows that steady state simulations with frozen rotor settings compare very well with the experimental data in different regimes and can be more conveniently used for the design optimization phase


The results related to the design optimization phase will be presented at the MINISYMPOSIUM on “Machine learning and data-driven approaches for optimization and uncertainty quantification” within the ECCOMAS 2022, which will be held in Oslo (Norway), June 2022.