Direct aeroacoustic and aerodynamic simulation of multi-hole engine liners

Jingmei Liu, Lyle N. Long

Research output: Contribution to conferencePaperpeer-review

8 Scopus citations


This paper presents a new method to simulate the aeroacoustics and aerodynamics of engine liners. The method is based on the nonlinear disturbance equations (NLDE). First a steady state flow field is computed by a standard CFL code (or analytically) and then the NLDE is used to simulate the perturbations. Numerically it is fourth order accurate in space and time. Thompson characteristic boundary conditions are applied to introduce acoustic waves at the inlet boundary of the duct. A typical engine liner unit with three holes on the face sheet is studied with and without the influence of a mean flow. The results show the interaction between the holes and their contributions to the acoustics in the duct. This study supplies a better understanding of the mechanism of engine liner aeroacoustics. Parallel computers are a necessity for this compute-intensive problem.

Original languageEnglish (US)
StatePublished - 1998
Event4th AIAA/CEAS Aeroacoustics Conference, 1998 - Toulouse, France
Duration: Jun 2 1998Jun 4 1998


Other4th AIAA/CEAS Aeroacoustics Conference, 1998

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Aerospace Engineering


Dive into the research topics of 'Direct aeroacoustic and aerodynamic simulation of multi-hole engine liners'. Together they form a unique fingerprint.

Cite this