Numerical Analysis of the Acoustic Transfer Behaviour of Pressure Ducts Utilised for Microphone Measurements in Combustion Chambers

@inproceedings{Lourier2010NumericalAO,
  title={Numerical Analysis of the Acoustic Transfer Behaviour of Pressure Ducts Utilised for Microphone Measurements in Combustion Chambers},
  author={Jean-Michel Lourier and Axel Widenhorn and B. Noll and M. St{\"o}hr and M. Aigner},
  year={2010}
}
  • Jean-Michel Lourier, Axel Widenhorn, +2 authors M. Aigner
  • Published 2010
  • Chemistry
  • Acoustic measurements within combustion chambers are expensive due to high thermal loads applied on the measurement devices at operating conditions. As a more feasible substitute, pressure ducts can be used to lead acoustic waves from combustion chambers to externally mounted microphones. Since these pressure ducts are purged by nitrogen at atmospheric temperature, high thermal loads are avoided. However, the acoustic signal measured within the pressure ducts is altered compared to the signal… CONTINUE READING
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