| Autor: |
Michaela Herr, Dimitrios Bekiropoulos, Andrea Iob, Franck Bertagnolio, Paul Batten, Christof Rautmann, Renzo Arina, M. Kamruzzaman, Sukumar Chakravarthy, Roland Ewert |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
21st AIAA/CEAS Aeroacoustics Conference. |
| DOI: |
10.2514/6.2015-2847 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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