Using a cylindrical vortex model to assess the induction zone infront of aligned and yawed rotors

Emmanuel Simon Pierre Branlard, Alexander Raul Meyer Forsting

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Abstract

Analytical formulae for the velocity field induced by a cylindrical vortex wake model areapplied to assess the induction zone in front of aligned and yawed rotors. The results arecompared to actuator disk (AD) simulations for different operating conditions, includingfinite tip-speed ratios. The mean relative error is estimated in the induction zone and foundto be below 0.4% for the aligned flows tested and below 1.3% for the yawed test cases. Thecomputational time required by the analytical model is in the order of thousands of timesless than the one required by the actuator disk simulation.
Original languageEnglish
Title of host publicationProceedings of EWEA Offshore 2015 Conference
Number of pages10
PublisherEuropean Wind Energy Association (EWEA)
Publication date2015
Publication statusPublished - 2015
EventEWEA Offshore 2015 Conference - Bella Center, Copenhagen, Denmark
Duration: 10 Mar 201512 Mar 2015

Conference

ConferenceEWEA Offshore 2015 Conference
LocationBella Center
CountryDenmark
CityCopenhagen
Period10/03/201512/03/2015

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