Abstract
This paper gives an overview about prediction capabilities and the development of noise reduction technologies appropriate to reduce high lift noise and propeller noise radiation for future low noise transport aircraft with short take-off and landing capabilities. The work is embedded in the collaborative research centre SFB 880 in Braunschweig, Germany. Results are presented from all the acoustics related projects of SFB 880 which cover the aeroacoustic simulation of the effect of flow permeable materials, the characterization, development, manufacturing and operation of (porous) materials especially tailored to aeroacoustics, new propeller arrangements for minimum exterior noise due to acoustic shielding as well as the prediction of vibration excitation of aircraft structures, reduced by porous materials.
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Acknowledgments
This work was funded by the Deutsche Forschungsge-meinschaft DFG (German Research Funding Organisation) in the framework of the collaborative research centre SFB 880. Computational resources were provided by the North-German Supercomputing Alliance HLRN.
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Delfs, J., Faßmann, B., Lippitz, N. et al. SFB 880: aeroacoustic research for low noise take-off and landing. CEAS Aeronaut J 5, 403–417 (2014). https://doi.org/10.1007/s13272-014-0115-2
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DOI: https://doi.org/10.1007/s13272-014-0115-2