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Sound propagation through nonuniform ducts
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Nayfeh, A. H. |
| Copyright Year | 1976 |
| Description | Methods of determining the transmission and attenuation of sound propagating in nonuniform ducts with and without mean flows are discussed. The approaches reviewed include purely numerical techniques, quasi-one-dimensional approximations, solutions for slowly varying cross sections, solutions for weak wall undulations, approximation of the duct by a series of stepped uniform cross sections, variational methods and solutions for the mode envelopes. |
| File Size | 979474 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770003364 |
| Archival Resource Key | ark:/13960/t0zp8t92b |
| Language | English |
| Publisher Date | 1976-01-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Numerical Analysis Sound Propagation Approximation Cross Sections Ducts Acoustic Attenuation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
