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Analysis of Rotorcraft Wind Turbine Wake Encounters using Piloted Simulation

Strbac, Alexander and Martini, Tanja and Greiwe, Daniel and Hoffmann, Frauke and Jones, Michael (2019) Analysis of Rotorcraft Wind Turbine Wake Encounters using Piloted Simulation. 45th European Rotorcraft Forum, 17.-20. Sept. 2019, Warsaw, Poland.

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The use of offshore wind farms in Europe to provide a sustainable alternative energy source is now considered normal. Particularly in the North Sea, a large number of wind farms exist with a significant distance from the coast. This is becoming standard practice as larger areas are required to support operations. Efficient transport and monitoring of these wind farms can only be conducted using helicopters. As wind turbines continue to grow in size, there is a need to continuously update operational requirements for these helicopters, to ensure safe operations. This study assesses German regulations for flight corridors within offshore wind farms. A semi-empirical wind turbine wake model is used to generate velocity data for the full flight simulator AVES. The reference offshore wind turbine NREL 5 MW has been used and scaled to represent wind turbine of different sizes. This paper reports results from a simulation study concerning vortex wake encounter during offshore operations. The results have been obtained through piloted simulation for a transport case through a wind farm. Both subjective and objective measures are used to assess the severity of vortex wake encounters.

Item URL in elib:https://elib.dlr.de/131134/
Document Type:Conference or Workshop Item (Speech)
Title:Analysis of Rotorcraft Wind Turbine Wake Encounters using Piloted Simulation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Strbac, AlexanderAlexander.Strbac (at) dlr.deUNSPECIFIED
Martini, TanjaTanja.Martini (at) dlr.deUNSPECIFIED
Greiwe, DanielDaniel.Greiwe (at) dlr.deUNSPECIFIED
Hoffmann, Fraukefrauke.hoffmann (at) dlr.deUNSPECIFIED
Jones, MichaelMichael.Jones (at) dlr.deUNSPECIFIED
Date:September 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:vortex-rotor interaction, wake encounter, wind turbine wake, flight safety, piloted simulation
Event Title:45th European Rotorcraft Forum
Event Location:Warsaw, Poland
Event Type:international Conference
Event Dates:17.-20. Sept. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Smart Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Strbac, Alexander
Deposited On:10 Jan 2020 19:20
Last Modified:10 Jan 2020 19:20

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