Near-wake dynamics of a vertical-axis turbine
@article{Strom2022NearwakeDO, title={Near-wake dynamics of a vertical-axis turbine}, author={Benjamin Strom and Brian L. Polagye and Steven L. Brunton}, journal={Journal of Fluid Mechanics}, year={2022}, volume={935} }
Abstract Cross-flow, or vertical-axis, turbines are a promising technology for capturing kinetic energy in wind or flowing water and their inherently unsteady fluid mechanics present unique opportunities for control optimization of individual rotors or arrays. To explore the potential for beneficial interactions between turbines in an array, as well as to characterize important cycle-to-cycle variations, coherent structures in the wake of a single two-bladed cross-flow turbine are examined…
One Citation
The Array Optimization of Vertical Axis Wind Turbine Based on a New Asymmetric Wake Model
- Computer ScienceJournal of Marine Science and Engineering
- 2021
The proposed wake model is a combination of two semi Gaussian functions with different deviations that can better reflect the asymmetric characteristic of the VAWT wake and can describe the behavior of wake merging in the case of counter-rotating twin turbines.
References
SHOWING 1-10 OF 116 REFERENCES
Characterising the near-wake of a cross-flow turbine
- Engineering, Physics
- 2015
The performance and detailed near-wake characteristics of a vertical axis, cross-flow turbine (CFT) of aspect ratio 1 were measured in a large cross-section towing tank. The near-wake at one turbine…
Transition to bluff-body dynamics in the wake of vertical-axis wind turbines
- PhysicsJournal of Fluid Mechanics
- 2017
We present experimental data to demonstrate that the far wake of a vertical-axis wind turbine (VAWT) exhibits features that are quantitatively similar to that of a circular cylinder with the same…
Near wake flow analysis of a vertical axis wind turbine by stereoscopic particle image velocimetry
- Physics
- 2014
Comparison of the wake recovery of the axial-flow and cross-flow turbine concepts
- Engineering, Physics
- 2017
Simulations of Intracycle Angular Velocity Control for a Crossflow Turbine
- Engineering, Physics
- 2020
Straight-bladed cross-flow turbines are computationally explored for harvesting energy in wind and water currents. One challenge for cross-flow turbines is the transient occurrence of high apparent…
The effects of inflow conditions on vertical axis wind turbine wake structure and performance
- Physics, EngineeringJournal of Wind Engineering and Industrial Aerodynamics
- 2018
Energy exchange in an array of vertical-axis wind turbines
- Environmental Science, Physics
- 2012
We analyze the flow field within an array of 18 counter-rotating, vertical-axis wind turbines (VAWTs), with an emphasis on the fluxes of mean and turbulence kinetic energy. The turbine wakes and the…
Three-dimensional flow field around and downstream of a subscale model rotating vertical axis wind turbine
- Physics, Engineering
- 2016
Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and…