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Broadband Trailing-Edge Noise Predictions - Overview of BANC-III Results

Herr, Michaela and Ewert, Roland and Rautmann, Christof and Kamruzzaman, Mohammad and Bekiropoulos, Dimitrios and Iob, Andrea and Arina, Renzo and Batten, Paul and Chakravarthy, Sukumar and Bertagnolio, Franck (2015) Broadband Trailing-Edge Noise Predictions - Overview of BANC-III Results. In: AIAA Aviation, 21st AIAA/CEAS Aeroacoustics Conference (2847), pp. 1-31. 21st AIAA/CEAS Aeroacoustics Conference, 22.-26. Juni 2015, Dallas, TX, USA. doi: 10.2514/6.2015-2847.

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The Third Workshop on Benchmark Problems for Airframe Noise Computations, BANC-III, was held on 14-15 June 2014 in Atlanta, Georgia, USA. The objective of this workshop was to assess the present computational capability in the area of physics-based prediction of different types of airframe noise problems and to advance the state-of-the-art via a combined effort. This documentation summarizes the results from workshop category 1 (BANC-III-1) which focuses on the prediction of broadband turbulent boundary-layer trailing-edge noise and related source quantities. Since the forerunner BANC-II workshop identified some room for improvements in the achieved prediction quality, BANC-III-1 relies on the same test cases, namely 2D NACA0012 and DU96-W-180 airfoil sections in a uniform flow. Compared to BANC-II particularly the scatter among predictions for the DU96-W- 180 test case could be significantly reduced. However, proposed adaptations of previously applied computational methods did not systematically improve the prediction quality for all requested parameters. The category 1 workshop problem remains a challenging simulation task due to its high requirements on resolving and modeling of turbulent boundary-layer source quantities.

Item URL in elib:https://elib.dlr.de/97482/
Document Type:Conference or Workshop Item (Speech)
Title:Broadband Trailing-Edge Noise Predictions - Overview of BANC-III Results
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kamruzzaman, MohammadVestas Technologies UK Ltd.UNSPECIFIEDUNSPECIFIED
Bekiropoulos, DimitriosUniversity of StuttgartUNSPECIFIEDUNSPECIFIED
Arina, RenzoPolitecnico di Torino, ItalyUNSPECIFIEDUNSPECIFIED
Batten, PaulMetacomp Technologies, Inc., USAUNSPECIFIEDUNSPECIFIED
Chakravarthy, SukumarMetacomp Technologies, Inc., USAUNSPECIFIEDUNSPECIFIED
Bertagnolio, FranckDTU Wind Energy, Technical University of DenmarkUNSPECIFIEDUNSPECIFIED
Date:June 2015
Journal or Publication Title:AIAA Aviation, 21st AIAA/CEAS Aeroacoustics Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-31
Series Name:AIAA Paper 2015-
Keywords:trailing-edge noise, benchmarks, CAA validation, BANC
Event Title:21st AIAA/CEAS Aeroacoustics Conference
Event Location:Dallas, TX, USA
Event Type:international Conference
Event Dates:22.-26. Juni 2015
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old), E - Wind Energy (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Herr, Michaela
Deposited On:27 Jul 2015 10:08
Last Modified:31 Jul 2019 19:54

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