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Verification of an acoustic transmission matrix analysis of sound propagation in a variable area duct without flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miles, J. H. |
| Copyright Year | 1981 |
| Description | A predicted standing wave pressure and phase angle profile for a hard wall rectangular duct with a region of converging-diverging area variation is compared to published experimental measurements in a study of sound propagation without flow. The factor of 1/2 area variation used is sufficient magnitude to produce large reflections. The prediction is based on a transmission matrix approach developed for the analysis of sound propagation in a variable area duct with and without flow. The agreement between the measured and predicted results is shown to be excellent. |
| File Size | 4297185 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820005018 |
| Archival Resource Key | ark:/13960/t9v16vm8x |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Boundary Value Problems Divergence Ducts Acoustic Propagation Velocity Distribution Magnitude Convergence Standing Waves Sound Propagation Sound Transmission Finite Difference Theory Matrices Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
