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Simulation of vorticity wind turbines.
Paolo Sassi1, Jorge Freiría1, Mariana Mendina1
1IMFIA - UdelaR - J. Herrera y Reissig 565, Montevideo, 11300, Uruguay.
Heliyon
|October 22, 2020
Summary
Vorticity wind turbines (VWT) show promise for renewable energy, achieving 20-30% efficiency by harnessing vortex-induced vibrations (VIV) in wind speeds of 9-15 m/s.
Area of Science:
- Fluid dynamics
- Renewable energy technologies
- Computational modeling
Background:
- Flexible elastic systems interacting with fluids exhibit complex dynamics due to large deformations and flow-induced shape changes.
- Vorticity wind turbines (VWT) represent a novel bladeless vertical turbine design capturing energy from vortex-induced vibrations (VIV).
Purpose of the Study:
- To develop and apply novel mathematical methods for modeling fluid-structure interactions in flexible systems.
- To explore the performance and feasibility of VWT through advanced computational simulations.
Main Methods:
- Coupling the Discrete Element Method (DEM) and Immersed Boundary Method (IBM) for VWT modeling.
- Utilizing the Finite Volume Method (FVM) to solve the Navier-Stokes equations for fluid dynamics.
- Simulating bidirectional fluid-structure interactions in elastic systems.
Main Results:
- VWT demonstrated the lock-in effect within a wind velocity range of 9 to 15 m/s.
- Achieved energy conversion efficiencies between 20% and 30%.
- The modeling framework successfully captured the complex dynamics of VWT.
Conclusions:
- VWTs are a promising renewable energy technology, particularly for developing countries, due to their efficiency and potential cost-effectiveness.
- The employed computational framework provides a robust method for analyzing such fluid-structure interaction problems.
Keywords:
Computational fluid dynamicsDiscrete element methodEnergyFinite volume methodImmersed boundary methodMechanical engineeringVorticity wind turbinesMore Related Videos
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