Tag List: Marine CFD

Title: Resource assessment of large marine current turbine arrays. Researcher: Danny Coles Superviors: AbuBakr Bahaj & Luke Blunden Abstract The deployment of marine current turbines has the potential to generate a significant amount of electricity in specific locations around the world. This is highly relevant to today’s energy market, where there is a demand to […]

The effects of ambient turbulence on an actuator disc representation of a tidal turbine.

Title: Turbulence and its effects on the performance and wake of a tidal stream turbine. Researcher: Tom Blackmore Superviors: AbuBakr Bahaj & William Batten   Abstract The tidal energy resource in the UK is one of the largest in Europe and can contribute to our ever increasing demand for low carbon energy. The technology is […]

Comparison of modelling methods in predicting the wake

Title: The accuracy of the actuator Disc-Rans approach for modelling performance and wake characteristics of a horizontal axis tidal stream turbine. Researcher: Matt Harrison Supervisors: William Batten & AbuBakr Bahaj   Abstract Tidal stream energy has the potential to supply power with low carbon dioxide emissions, but the technology is still being developed. Horizontal axis tidal stream turbines have seen […]

12 small images showing simulated velocity deficit when tidal turbines are installed at different locations around alderney

The effect of tidal stream turbine arrays upon sediment dynamics has received little attention to date due to, on one hand, lack of installed arrays and on the other lack of high resolution bathymetric survey data. However, we are now at the stage where there are some serious plans for implementing arrays of size tens […]

Difference in flow speed (m/s) when energy extraction is applied in the area indicated by the rectangle. Yellow to red indicates an increase in flow speed at the time-step, green to blue a decrease. White indicates that the magnitude of the change is less than 3 cm/s.

Little is known about the possible effects that a large number of tidal turbines would have on the local tidal regime. Having some idea is important, not only for the purpose of predicting power output (it could be reduced due to reduced flow speeds), but also for environmental impact assessment. Field data on these effects […]