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Descripción
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| This article presents a description of the spatio-temporal flow structures found behind a cross-flow wind turbine under turbulent flow conditions. Higher order dynamic mode decomposition (HODMD) is applied to analyze both, the wake and the rotating area near the blades when simulated using a high order discontinuous Galerkin method with sliding meshes. The analysis of the flow velocities shows a marked asymmetry of the wake. This phenomenon is illustrated by the statistical analysis provided by a Reynolds decomposition and backed up through the dynamic mode analysis. Additionally, the results show that the flow is composed by a mode whose fundamental frequency is the frequency of rotation of the wind turbine and its harmonics. This fundamental frequency can be related to a traveling wave, moving in the streamwise direction of the flow. | |
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Internacional
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Si |
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JCR del ISI
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No |
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Título de la revista
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AIAA SciTech Forum - Wind Energy Symposium 2018 |
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ISSN
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9781510857056 |
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Factor de impacto JCR
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Información de impacto
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Volumen
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DOI
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10.2514/6.2018-0253 |
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Número de revista
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15 |
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