Loading...
Please wait, while we are loading the content...
Similar Documents
A zonal approach for prediction of jet noise
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hixon, D. R. Mankbadi, Reda R. Shih, S. H. |
| Copyright Year | 1995 |
| Description | A zonal approach for direct computation of sound generation and propagation from a supersonic jet is investigated. The present work splits the computational domain into a nonlinear, acoustic-source regime and a linear acoustic wave propagation regime. In the nonlinear regime, the unsteady flow is governed by the large-scale equations, which are the filtered compressible Navier-Stokes equations. In the linear acoustic regime, the sound wave propagation is described by the linearized Euler equations. Computational results are presented for a supersonic jet at M = 2. 1. It is demonstrated that no spurious modes are generated in the matching region and the computational expense is reduced substantially as opposed to fully large-scale simulation. |
| File Size | 727026 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960007783 |
| Archival Resource Key | ark:/13960/t79s6pm7f |
| Language | English |
| Publisher Date | 1995-10-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Navier-stokes Equation Computation Euler Equations of Motion Supersonic Jet Flow Nonlinearity Boundary Conditions Aeroacoustics Noise Prediction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
