Academic Journal
Vortex identification methods applied to wind turbine tip vortices
| العنوان: | Vortex identification methods applied to wind turbine tip vortices |
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| المؤلفون: | Soto-Valle, Rodrigo, Cioni, Stefano, Bartholomay, Sirko, Manolesos, Marinos, Nayeri, Christian Navid, Bianchini, Alessandro, Paschereit, Christian Oliver |
| سنة النشر: | 2022 |
| المجموعة: | TU Berlin: Deposit Once |
| مصطلحات موضوعية: | 532 Mechanik der Fluide, Mechanik der Flüssigkeiten, vortex identification, wind turbines, wind turbine tip vortices, PIV, particle image velocimetry |
| الوصف: | This study describes the impact of postprocessing methods on the calculated parameters of tip vortices of a wind turbine model when tested using particle image velocimetry (PIV). Several vortex identification methods and differentiation schemes are compared. The chosen methods are based on two components of the velocity field and their derivatives. They are applied to each instantaneous velocity field from the dataset and also to the calculated average velocity field. The methodologies are compared through the vortex center location, vortex core radius and jittering zone. Results show that the tip vortex center locations and radius have good comparability and can vary only a few grid spacings between methods. Conversely, the convection velocity and the jittering surface, defined as the area where the instantaneous vortex centers are located, vary between identification methods. Overall, the examined parameters depend significantly on the postprocessing method and selected vortex identification criteria. Therefore, this study proves that the selection of the most suitable postprocessing methods of PIV data is pivotal to ensure robust results. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2366-7451 2366-7443 |
| Relation: | https://depositonce.tu-berlin.de/handle/11303/17767; https://doi.org/10.14279/depositonce-16554 |
| DOI: | 10.14279/depositonce-16554 |
| الاتاحة: | https://depositonce.tu-berlin.de/handle/11303/17767 https://doi.org/10.14279/depositonce-16554 |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.926676B9 |
| قاعدة البيانات: | BASE |
| تدمد: | 23667451 23667443 |
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| DOI: | 10.14279/depositonce-16554 |