Large Eddy Simulation of a Thermoacoustic Instability Within a Swirl-Stabilized Burner Using Impedance Boundary Conditions

@inproceedings{Lourier2014LargeES,
  title={Large Eddy Simulation of a Thermoacoustic Instability Within a Swirl-Stabilized Burner Using Impedance Boundary Conditions},
  author={Jean-Michel Lourier and B. Noll and M. Aigner},
  year={2014}
}
  • Jean-Michel Lourier, B. Noll, M. Aigner
  • Published 2014
  • Engineering
  • A thermoacoustic instability observed within a lean swirl-stabilized burner is analyzed by means of numerical calculations. As extension to previously reported numerical data for the considered test case, the numerical domain is extended to include the fuel plenum and the acoustic outlet impedance is modeled by time domain impedance boundary conditions.The predicted thermoacoustic frequency is in excellent agreement with experimental findings. Furthermore, the thermoacoustic feedback loop is… CONTINUE READING
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