Theoretical performances of double Gurney Flap equipped the VAWTs

A Gurney flap is simply a flat plate attached perpendicularly to the lower surface of an airfoil or wing trailing edge. A T-strip or double Gurney flap is attached to both the upper and lower surfaces. T-strips are used to modify the lifting characteristics of the baseline airfoil for vertical axis...

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Bibliographic Details
Published in:INCAS bulletin 2012-12, Vol.4 (4), p.93-99
Main Authors: Malael, Ion, Bogateanu, Radu, Dumitrescu, Horia
Format: Article
Language:English
Subjects:
Aircraft
Airfoils
CFD
Flaps
Flat plates
Gurney Flap
Hoisting
T-strip
Trailing edges
Turbines
VAWT
Wings (aircraft)
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Summary:A Gurney flap is simply a flat plate attached perpendicularly to the lower surface of an airfoil or wing trailing edge. A T-strip or double Gurney flap is attached to both the upper and lower surfaces. T-strips are used to modify the lifting characteristics of the baseline airfoil for vertical axis wind rotor turbines. Generally, T-strips have been used during developmental flight test as simple add-on "fixes" to improve the performances of existing aircraft vertical tails. This paper aims to investigate the performances of VAWTs equipped with T-strip on blades trailing edge.
ISSN:2066-8201
2247-4528
DOI:10.13111/2066-8201.2012.4.4.8