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EnglishIn this paper a model to calculate the wake birth and development behind a straight bladed vertical axis wind turbine is presented and applied to a specific example. The performances of the turbine are calculated by means of a vortex model while the wake development is predicted by making use of a finite volume viscous solver. By combining these two different approaches the wake development for different operating conditions has been calculated. The inherently unsteady wake production for this kind of wind turbine, which gives rise to a cyclic evolution of the speed deficit, can be modeled through the free wake vortex model. Therefore the present integrated model allows capturing the details of the flow field as the final calculation shown demonstrates.
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| Titolo: | Computational Analysis of the Unsteady Wind Turbine Wake Evolution |
| Autori: | |
| Data di pubblicazione: | 2000 |
| Abstract: | In this paper a model to calculate the wake birth and development behind a straight bladed vertical axis wind turbine is presented and applied to a specific example. The performances of the turbine are calculated by means of a vortex model while the wake development is predicted by making use of a finite volume viscous solver. By combining these two different approaches the wake development for different operating conditions has been calculated. The inherently unsteady wake production for this kind of wind turbine, which gives rise to a cyclic evolution of the speed deficit, can be modeled through the free wake vortex model. Therefore the present integrated model allows capturing the details of the flow field as the final calculation shown demonstrates. |
| Handle: | http://hdl.handle.net/11388/66317 |
| ISBN: | 8489925704 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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