Hydrokinetic turbine array analysis and optimization integrating blockage effects and turbine-wake interactions

2021 ◽  
Author(s):  
Olivier Gauvin-Tremblay ◽  
Guy Dumas
Keyword(s):  
Array Analysis ◽  
Hydrokinetic Turbine ◽  
Wake Interactions ◽  
Turbine Wake

Hydrokinetic turbine array modeling for performance analysis and deployment optimization

2018 ◽  
Vol 42 (4) ◽  
pp. 370-381 ◽  
Author(s):  
Sébastien Bourget ◽  
Olivier Gauvin-Tremblay ◽  
Guy Dumas
Keyword(s):  
Cfd Simulation ◽  
Three Dimensional ◽  
Free Surface Flows ◽  
Navier Stokes ◽  
Cfd Simulations ◽  
Power Extraction ◽  
Hydrokinetic Turbine ◽  
Wake Interactions ◽  
Array Optimization ◽  
Turbine Wake

The promising preliminary results of an ongoing investigation aimed at developing a turbine array optimization tool are presented. This tool uses three-dimensional Reynolds-averaged Navier–Stokes (3D RANS) CFD simulations of free-surface flows to capture blockage effects and turbine-wake interactions present in dense river arrays. Turbines are represented individually into the river model using actuating regions inside which momentum source terms are distributed non-uniformly and scaled with turbine force coefficients (defined with regards to a local velocity scale). These data are derived from a high-fidelity CFD simulation of the specific turbine operating near maximum power extraction.

Computational Study of Multiple Hydrokinetic Turbines: The Effect of Wake

2015 ◽  
Author(s):  
Cosan Daskiran ◽  
Jacob Riglin ◽  
Alparslan Oztekin
Keyword(s):  
Computational Study ◽  
Relative Power ◽  
Cfd Simulations ◽  
Significant Drop ◽  
Hydrokinetic Turbines ◽  
Hydrokinetic Turbine ◽  
Wake Interactions ◽  
Sst Turbulence Model ◽  
Computational Fluid Dynamics Cfd ◽  
Turbine Design

Computational Fluid Dynamics (CFD) simulations have been conducted to investigate the performance of a predetermined propeller-based hydrokinetic turbine design in staggered and non-staggered placements for river applications. Actual turbine models were used instead of low fidelity actuator line or actuator disks for CFD simulations to achieve more reliable results. The k-ω Shear Stress Transport (SST) turbulence model was employed to resolve wall effects on turbine surface and to determine wake interactions behind the turbines. The wake interaction behind the upstream turbine causes significant drop on downstream turbine performance within non-staggered configuration. The upstream turbines in both staggered and non-staggered placement offers the same relative power of 0.96, while the relative power for downstream turbine is 0.98 for staggered installment and 0.16 for inline placement.

scholarly journals Wind turbine wake interactions at field scale: An LES study of the SWiFT facility

2014 ◽  
Vol 524 ◽  
pp. 012139 ◽  
Author(s):  
Xiaolei Yang ◽  
Aaron Boomsma ◽  
Matthew Barone ◽  
Fotis Sotiropoulos
Keyword(s):  
Wind Turbine ◽  
Field Scale ◽  
Wake Interactions ◽  
Turbine Wake ◽  
Wind Turbine Wake

scholarly journals Review of tidal turbine wake modelling methods

2020 ◽  
Vol 3 (2) ◽  
pp. 91-100
Author(s):  
Ellen Jump ◽  
Alasdair Macleod ◽  
Tom Wills
Keyword(s):  
Physical Modelling ◽  
Tidal Energy ◽  
Horizon 2020 ◽  
Wake Interactions ◽  
Tidal Turbine ◽  
Modelling Techniques ◽  
Turbine Wake ◽  
Modelling Methods ◽  
Optimal Site ◽  
Device Modelling

Enabling Future Arrays in Tidal (EnFAIT) is an EU Horizon 2020 flagship tidal energy project. It aims to demonstrate the development, operation and decommissioning of the world’s largest tidal array (six turbines), over a five-year period, to prove a cost reduction pathway for tidal energy and confirm that it can be cost competitive with other forms of renewable energy. To determine the optimal site layout and spacing between turbines within a tidal array, it is essential to accurately characterise tidal turbine wakes and their effects. This paper presents a state-of-the-art review of tidal turbine wake modelling methods, with an overview of the relevant fundamental theories. Numerical and physical modelling research completed by both academia and industry are considered to provide an overview of the contemporary understanding in this area. The scalability of single device modelling techniques to an array situation is discussed, particularly with respect to wake interactions.

scholarly journals Three-dimensional modelling of turbine wake interactions at a tidal stream energy site

2020 ◽  
Vol 95 ◽  
pp. 102009 ◽  
Author(s):  
Michelet N ◽  
Guillou N ◽  
Chapalain G ◽  
Thiébot J ◽  
Guillou S ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Wake Interactions ◽  
Tidal Stream ◽  
Tidal Stream Energy ◽  
Turbine Wake
Sign in / Sign up

Export Citation Format

Share Document