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Two computational studies of a flatback airfoil using non-zonal and embedded scale-resolving turbulence modelling approaches

Fuchs, Marian and Weihing, Pascal and Kuehn, Timo and Herr, Michaela and Suryadi, Alexandre and Mockett, Charles and Knobbe-Eschen, Henry and Kramer, Felix and Knacke, Thilo (2022) Two computational studies of a flatback airfoil using non-zonal and embedded scale-resolving turbulence modelling approaches. In: 28th AIAA/CEAS Aeroacoustics Conference, 2022, pp. 1-29. American Institute of Aeronautics and Astronautics. 28th AIAA/CEAS Aeroacoustics 2022 Conference, 2022-06-14 - 2022-06-17, Southampton, United Kingdom. doi: 10.2514/6.2022-2860. ISBN 978-162410664-4.

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/6.2022-2860

Abstract

The contribution presents results from two computational studies conducted by Upstream CFD and ENERCON, which aim to evaluate their respective CFD methodologies for the aerodynamics and aeroacoustics prediction of a flatback airfoil with 35% relative thickness. The CFD is validated against data from two comprehensive experimental campaigns conducted in the NWB facility operated by the German-Dutch Wind Tunnels Foundation (DNW), which include measurements of mean force coefficients, static and total pressure distributions in the wake region, unsteady surface pressures and farfield sound emission. In both numerical studies, scale-resolving approaches based on detached-eddy simulation are utilised, where a comparison is drawn between a purely non-zonal use of the model in which attached boundary layers are fully modelled via RANS and a zonal use with synthetic turbulence being injected into the boundary layers upstream of the trailing edge. First, the aerodynamic flow fields are analysed, showing good agreement with the reference measurements. Farfield noise is then predicted from solid and permeable Ffowcs-Williams and Hawkings surfaces, where both the dominant shedding tone as well as broadband levels compare well with microphone array data.

Item URL in elib:https://elib.dlr.de/189145/
Document Type:Conference or Workshop Item (Lecture)
Additional Information:Fuchs, Weihing, Kuehn, Mockett, Knobbe-Eschen, Kramer and Knacke conducted simulations. Herr and Weihing conducted experiments. Suryadi processed the experimental data. All authors contributed to the text
Title:Two computational studies of a flatback airfoil using non-zonal and embedded scale-resolving turbulence modelling approaches
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Fuchs, MarianUpstream CFD GmbH, Bismarckstr. 10-12, D-10625, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Weihing, PascalWRD Wobben Research and Development GmbH, Teerhof 59, D-28199, Bremen / GermanyUNSPECIFIEDUNSPECIFIED
Kuehn, TimoWRD Wobben Research and Development GmbH, Teerhof 59, D-28199, Bremen / GermanyUNSPECIFIEDUNSPECIFIED
Herr, MichaelaUNSPECIFIEDhttps://orcid.org/0009-0000-7275-7078154899510
Suryadi, AlexandreUNSPECIFIEDhttps://orcid.org/0000-0002-5129-5510UNSPECIFIED
Mockett, CharlesUpstream CFD GmbH, Bismarckstr. 10-12, D-10625, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Knobbe-Eschen, HenryWRD Wobben Research and Development GmbH, Teerhof 59, D-28199, Bremen / GermanyUNSPECIFIEDUNSPECIFIED
Kramer, FelixUpstream CFD GmbH, Bismarckstr. 10-12, D-10625, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Knacke, ThiloUpstream CFD GmbH, Bismarckstr. 10-12, D-10625, Berlin, GermanyUNSPECIFIEDUNSPECIFIED
Date:14 June 2022
Journal or Publication Title:28th AIAA/CEAS Aeroacoustics Conference, 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.2514/6.2022-2860
Page Range:pp. 1-29
Publisher:American Institute of Aeronautics and Astronautics
Series Name:Aeroacoustics Conferences
ISBN:978-162410664-4
Status:Published
Keywords:Numerical simulation and validation, flatback profile, wind turbine
Event Title:28th AIAA/CEAS Aeroacoustics 2022 Conference
Event Location:Southampton, United Kingdom
Event Type:international Conference
Event Start Date:14 June 2022
Event End Date:17 June 2022
Organizer:Royal Aeronautical Society
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Photovoltaics and 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 for Aerodynamics and Flow Technology > Wind Energy
Deposited By: Suryadi, Alexandre
Deposited On:25 Oct 2022 12:52
Last Modified:24 Apr 2024 20:50

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