In-flight simulation experiments on turbulent jet mixing noise

H. K. Tanna, P. J. Morris

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


The effects of aircraft forward motion on pure turbulent mixing noise from unheated jets have been examined experimentally in the in-flight simulation mode. Both acoustic and flow characteristics were determined by testing model-scale nozzles in an anechoic free jet facility and a wind tunnel, respectively. Scaling laws were derived from each set of experiments and found to be complementary. The implications are discussed in detail. In particular, it is shown that the measured reduction in noise at 90° to the jet axis is a pure source alteration effect.

Original languageEnglish (US)
Pages (from-to)389-405
Number of pages17
JournalJournal of Sound and Vibration
Issue number3
StatePublished - Aug 8 1977

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering


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