Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions
Horizontal axis wind turbines (HAWTs) experience yaw misalignments due to the physical limitations of yaw controllers and various novel active yaw controls. Moreover, the motion of floating offshore wind turbines (FOWTs) accelerates yaw misalignment. The blade element momentum (BEM) method is widely...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/24/9368 |
| _version_ | 1827640200229027840 |
|---|---|
| author | Chihoon Hur Carlos Ferreira Gerard Schepers |
| author_facet | Chihoon Hur Carlos Ferreira Gerard Schepers |
| author_sort | Chihoon Hur |
| collection | DOAJ |
| description | Horizontal axis wind turbines (HAWTs) experience yaw misalignments due to the physical limitations of yaw controllers and various novel active yaw controls. Moreover, the motion of floating offshore wind turbines (FOWTs) accelerates yaw misalignment. The blade element momentum (BEM) method is widely used due to its computational efficiency for the design of HAWTs. Momentum theory, the basis of BEM, assumes steady flow and uniform induction field at the disc. Those assumptions are relaxed by engineering models to capture yaw and unsteady effects. Current yaw engineering models, however, are inaccurate since they do not capture the asymmetric wake expansion effect. Dynamic inflow models have been developed for non-yawed flow. Furthermore, the AVATAR project shows that BEM using fully coupled engineering models, the current yaw, dynamic inflow and various engineering models, suffers from significant deficiencies. This purpose of this paper, therefore, is to investigate dynamic effects for yawed flow, and determine if current dynamic inflow models are applicable in yawed conditions. The Glauert’s modified momentum theory is applied to dynamic inflow models to couple the two models. Among all coupled models, Øye, Yu PWVM and Yu FWVM DIM can capture asymmetric trends. However, the results show the significant deficiencies in phase delay on the actuator disc. |
| first_indexed | 2024-03-09T16:55:36Z |
| format | Article |
| id | doaj.art-4b680df568e74eeb86be04cbe9a5a9bd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T16:55:36Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4b680df568e74eeb86be04cbe9a5a9bd2023-11-24T14:35:39ZengMDPI AGEnergies1996-10732022-12-011524936810.3390/en15249368Applicability of Dynamic Inflow Models of HAWT in Yawed Flow ConditionsChihoon Hur0Carlos Ferreira1Gerard Schepers2Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The NetherlandsFaculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The NetherlandsTNO Energy Transition, Wind Energy, 1755 LE Petten, The NetherlandsHorizontal axis wind turbines (HAWTs) experience yaw misalignments due to the physical limitations of yaw controllers and various novel active yaw controls. Moreover, the motion of floating offshore wind turbines (FOWTs) accelerates yaw misalignment. The blade element momentum (BEM) method is widely used due to its computational efficiency for the design of HAWTs. Momentum theory, the basis of BEM, assumes steady flow and uniform induction field at the disc. Those assumptions are relaxed by engineering models to capture yaw and unsteady effects. Current yaw engineering models, however, are inaccurate since they do not capture the asymmetric wake expansion effect. Dynamic inflow models have been developed for non-yawed flow. Furthermore, the AVATAR project shows that BEM using fully coupled engineering models, the current yaw, dynamic inflow and various engineering models, suffers from significant deficiencies. This purpose of this paper, therefore, is to investigate dynamic effects for yawed flow, and determine if current dynamic inflow models are applicable in yawed conditions. The Glauert’s modified momentum theory is applied to dynamic inflow models to couple the two models. Among all coupled models, Øye, Yu PWVM and Yu FWVM DIM can capture asymmetric trends. However, the results show the significant deficiencies in phase delay on the actuator disc.https://www.mdpi.com/1996-1073/15/24/9368horizontal axis wind turbinesactuator discyawdynamic inflowBEMvortex |
| spellingShingle | Chihoon Hur Carlos Ferreira Gerard Schepers Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions Energies horizontal axis wind turbines actuator disc yaw dynamic inflow BEM vortex |
| title | Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions |
| title_full | Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions |
| title_fullStr | Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions |
| title_full_unstemmed | Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions |
| title_short | Applicability of Dynamic Inflow Models of HAWT in Yawed Flow Conditions |
| title_sort | applicability of dynamic inflow models of hawt in yawed flow conditions |
| topic | horizontal axis wind turbines actuator disc yaw dynamic inflow BEM vortex |
| url | https://www.mdpi.com/1996-1073/15/24/9368 |
| work_keys_str_mv | AT chihoonhur applicabilityofdynamicinflowmodelsofhawtinyawedflowconditions AT carlosferreira applicabilityofdynamicinflowmodelsofhawtinyawedflowconditions AT gerardschepers applicabilityofdynamicinflowmodelsofhawtinyawedflowconditions |