Quantification of airframe noise using microphone arrays in open and closed wind tunnels

@inproceedings{Oerlemans2007QuantificationOA,
  title={Quantification of airframe noise using microphone arrays in open and closed wind tunnels},
  author={Stefan Oerlemans and Liekele Broersma and Pieter Sijtsma},
  year={2007}
}
The reliability of the phased array technique for quantifying airframe noise was assessed in the DNW-LLF open and closed wind tunnel sections. Acoustic measurements were performed on wing noise from a 1:10.6 scaled Airbus A340 model, using a 4-m diameter out-of-flow microphone array in the open jet and a 1-m diameter wall array in the closed test section. Apart from the differences in array resolution, the source characteristics are generally similar for both test sections. The open jet results… CONTINUE READING

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