Numerical predictions of high speed jet noise

Philip J. Morris, Qunzhen Wang, Lyle N. Long, David P. Lockard

Research output: Contribution to conferencePaperpeer-review

21 Scopus citations


A parallel three-dimensional computational aeroacoustics method, based on large eddy simulation and a split between the mean flow and perturbations, has been developed to predict the unsteady characteristics of supersonic jet flows and their radiated noise. The instantaneous quantities are decomposed into a time-independent mean component, a large-scale perturbation, and a small-scale perturbation. Only the large-scale fluctuations are resolved directly while the mean quantities are obtained from a traditional Reynolds averaged method. The effects of the small-scale fluctuations are parameterized using a subgrid scale model. In order to reduce the wall-clock time for the simulations, the three-dimensional code has been parallelized using a domain decomposition strategy and Message Passing Interface (MPI) routines are used to facilitate exchange of data between different processors. Results for both the flow and acoustic fields of a circular jet simulation at a nozzle exit Mach number of 2.1 are presented and comparisons with several experimental measurements are made.

Original languageEnglish (US)
StatePublished - 1997
Event3rd AIAA/CEAS Aeroacoustics Conference, 1997 - Atlanta, United States
Duration: May 12 1997May 14 1997


Other3rd AIAA/CEAS Aeroacoustics Conference, 1997
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Aerospace Engineering


Dive into the research topics of 'Numerical predictions of high speed jet noise'. Together they form a unique fingerprint.

Cite this