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

M. Herr, R. Ewert, C. Rautmann, M. Kamruzzaman, D. Bekiropoulos, A. Iob, R. Arina, P. Batten, S. Chakravarthy, Franck Bertagnolio

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The Third Workshop on Benchmark Problems for Airframe Noise Computations, BANCIII, 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 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 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-W180 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.
Original languageEnglish
Title of host publicationProceedings of 21st AIAA/CEAS Aeriaciystucs Conference
PublisherAmerican Institute of Aeronautics and Astronautics
Publication date2015
Article numberAIAA 2015-2847
DOIs
Publication statusPublished - 2015
Event21st AIAA/CEAS Aeroacoustics Conference - Dallas, TX, United States
Duration: 22 Jun 201526 Jun 2015
Conference number: 21

Conference

Conference21st AIAA/CEAS Aeroacoustics Conference
Number21
CountryUnited States
CityDallas, TX
Period22/06/201526/06/2015

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