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Abstract
This paper presents a preliminary three dimensional analysis of the transient aerodynamic phenomena occurring in the innovative modification of classic Savonius wind turbine. An attempt to explain the increased efficiency of the innovative design in comparison with the traditional solution is undertaken. Several vorticity measures such as enstrophy, absolute helicity and the integral of the velocity gradient tensor second invariant are proposed in order to evaluate and compare designs. Discussed criteria are related to the vortex structures and energy dissipation. These structures are generated by the rotor and may affect the efficiency. There are also different vorticity measure taking advantage of eigenvalues of the velocity gradient tensor.
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Authors (3)
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Piotr Doerffer
- Institute of Fluid Flow Machinery .
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1742-6596/530/1/012007
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Details
- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Published in:
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Journal of Physics : Conference Series
no. 530,
pages 1 - 8,
ISSN: 1742-6588 - Title of issue:
- XXI FLUID MECHANICS CONFERENCE strony 1 - 8
- ISSN:
- 1742-6588
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Kludzińska K., Tesch K., Doerffer P..: Investigation of the aerodynamics of an innovative verticalaxis wind turbine, W: XXI FLUID MECHANICS CONFERENCE, 2014, IOPscience,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1088/1742-6596/530/1/012007
- Verified by:
- Gdańsk University of Technology
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