An improved tip-loss correction based on vortex code results
Publication: Research - peer-review › Poster – Annual report year: 2012
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An improved tip-loss correction based on vortex code results. / Branlard, Emmanuel Simon Pierre; Dixon, Kristian; Gaunaa, Mac.
2012. Poster session presented at EWEA 2012 - European Wind Energy Conference & Exhibition, Copenhagen, Denmark.Publication: Research - peer-review › Poster – Annual report year: 2012
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TY - CONF
T1 - An improved tip-loss correction based on vortex code results
A1 - Branlard,Emmanuel Simon Pierre
A1 - Dixon,Kristian
A1 - Gaunaa,Mac
AU - Branlard,Emmanuel Simon Pierre
AU - Dixon,Kristian
AU - Gaunaa,Mac
PY - 2012
Y1 - 2012
N2 - Standard blade element momentum(BEM) codes <br/>use Prandtl’s tip-loss correction which relies on simplified <br/>vortex theory under the assumption of optimal <br/>operating condition and no wake expansion. A <br/>new tip-loss correction for implementation in BEM <br/>codes has been developed using a lifting-line code <br/>to account for the effect of wake expansion, roll-up <br/>and distortion under any operating conditions. A <br/>database of tip-loss corrections is established for further <br/>use in BEM codes. Using this model a more <br/>physical representation of the flow and hence a better <br/>assessment of the performance of the turbine by <br/>BEM codes is expected.
AB - Standard blade element momentum(BEM) codes <br/>use Prandtl’s tip-loss correction which relies on simplified <br/>vortex theory under the assumption of optimal <br/>operating condition and no wake expansion. A <br/>new tip-loss correction for implementation in BEM <br/>codes has been developed using a lifting-line code <br/>to account for the effect of wake expansion, roll-up <br/>and distortion under any operating conditions. A <br/>database of tip-loss corrections is established for further <br/>use in BEM codes. Using this model a more <br/>physical representation of the flow and hence a better <br/>assessment of the performance of the turbine by <br/>BEM codes is expected.
KW - Tip-loss factor
KW - Tip-loss correction
KW - Vortex methods
KW - Improved BEM
KW - Bézier curve
KW - Wake deformation
KW - EWEA 2012
ER -