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Preliminary Performance Assessment of a Twin-Rotor Horizontal Axis Wind Turbine Using Fast Aerodynamic Methods

Michels, Benedikt (2019) Preliminary Performance Assessment of a Twin-Rotor Horizontal Axis Wind Turbine Using Fast Aerodynamic Methods. In: New Results in Numerical and Experimental Fluid Mechanics XII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 142. Springer. pp. 819-829. ISBN 978-3-030-25252-6. ISSN 1612-2909

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Official URL: https://link.springer.com/chapter/10.1007/978-3-030-25253-3_77

Abstract

The present work describes a simplified computational setup for the preliminary estimation of the power output of an overlapping twin-rotor horizontal axis wind turbine. A blade element theory based rotor code coupled to a free-wake vortex-lattice downwash model is used for the prediction of the turbine behavior. The relation of power output versus rotor overlap of the twin-rotor configuration is compared to a single isolated rotor at identical operation conditions. An acceptable amount of rotor overlap in terms of power loss is found to allow for a close spacing. An analysis of the wake-induced velocity seeks to shed some light on the aerodynamic interaction.

Item URL in elib:https://elib.dlr.de/129628/
Document Type:Book Section
Title:Preliminary Performance Assessment of a Twin-Rotor Horizontal Axis Wind Turbine Using Fast Aerodynamic Methods
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Michels, BenediktBenedikt.Michels (at) dlr.deUNSPECIFIED
Date:October 2019
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics XII
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:142
DOI :10.1007/978-3-030-25252-3_77
Page Range:pp. 819-829
Publisher:Springer
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-030-25252-6
Status:Published
Keywords:wind turbine, twin-rotor, aerodynamic interaction, free-vortex wake
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Michels, Benedikt
Deposited On:14 Jan 2020 13:41
Last Modified:14 Jan 2020 13:41

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