Development of new tip-loss corrections based on vortex theory and vortex methods

Emmanuel Simon Pierre Branlard, Mac Gaunaa

Research output: Contribution to journalConference articleResearchpeer-review

274 Downloads (Pure)


A new analytical formulation of the tip-loss factor is established based on helical vortex lament solutions. The derived tip-loss factor can be applied to wind-turbines, propellers or other rotary wings. Similar numerical formulations are used to assess the influence of wake expansion on tip-losses. Theodorsen's theory is successfully applied for the first time to assess the wake expansion behind a wind turbine. The tip-loss corrections obtained are compared with the ones from Prandtl and Glauert and implemented within a new Blade Element Momentum(BEM) code. Wake expansion is seen to reduce tip-losses and have a greater influence than wake distortion.
Original languageEnglish
Article number012012
Book seriesJournal of Physics: Conference Series (Online)
Number of pages8
Publication statusPublished - 2014
EventThe science of Making Torque from Wind 2012: 4th scientific conference - Universität Oldenburg, Oldenburg, Germany
Duration: 9 Oct 201211 Oct 2012


ConferenceThe science of Making Torque from Wind 2012
LocationUniversität Oldenburg
Internet address

Bibliographical note

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd


Dive into the research topics of 'Development of new tip-loss corrections based on vortex theory and vortex methods'. Together they form a unique fingerprint.

Cite this