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A difference theory for noise propagation in an acoustically lined duct with mean flow
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Rice, E. J. Baumeister, K. J. |
| Copyright Year | 1973 |
| Description | A finite difference formulation is presented for sound propagation in a two-dimensional straight soft-walled duct with uniform flow. The difference analysis is developed in terms of complex notation. The governing acoustic difference equations and the appropriate displacement boundary conditions associated with uniform flow are presented for the sound attenuation in straight hard and soft-walled ducts. At present the finite Mach number case is solved only for the one-dimensional hard walled duct. |
| File Size | 509755 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730020990 |
| Archival Resource Key | ark:/13960/t6d26pt7j |
| Language | English |
| Publisher Date | 1973-01-01 |
| Access Restriction | Open |
| Subject Keyword | Ducted Flow Sound Waves Sound Propagation Noise Reduction Finite Difference Theory Acoustic 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 |
