• Corpus ID: 244708982

On the scattering of entropy waves at sudden area expansions

  title={On the scattering of entropy waves at sudden area expansions},
  author={Juan Guzm'an-Inigo and Dong Yang and Renaud Gaudron and Aimee S. Morgans},
In this work, we investigate both numerically and theoretically the sound generated by entropy waves passing through sudden area expansions. This is a canonical configuration representing internal flows with flow separation and stagnation pressure losses. The numerical approach is based on a triple decomposition of the flow variables into a steady mean, a small-amplitude coherent part, and a stochastic turbulent part. The coherent part contains acoustic, vortical, and entropy waves. The mean… 


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