Computational observations of the tip loss mechanism experienced by horizontal axis rotors
- Submitting institution
-
University of Oxford
- Unit of assessment
- 12 - Engineering
- Output identifier
- 9556
- Type
- D - Journal article
- DOI
-
10.1002/we.2177
- Title of journal
- Wind Energy
- Article number
- -
- First page
- 544
- Volume
- 21
- Issue
- 7
- ISSN
- 1095-4244
- Open access status
- Compliant
- Month of publication
- February
- Year of publication
- 2018
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
1
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Classical wind turbine design methods use empirically closed tip correction factors that originated with Prandtl (1921) and Glauert (1935) to account for tip flows that reduce turbine loads and performance. Such models solely consider axial induction effects and consistently overestimate performance. The paper identifies the physical mechanism not accounted for in the original models and proposes a new anisotropic correction to account for differential tip losses in thrust and torque that arise from spanwise momentum flows. This is the first time an anisotropic correction has been proposed and lays the foundation for future higher fidelity turbine corrections to be developed.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -