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Prediction of sound waves propagating through a nozzle without/with a shock wave using the space-time ce/se method
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wang, Xiao-Yen Jorgenson, Philip C. E. Chang, Sin-Chung |
| Copyright Year | 2000 |
| Description | The benchmark problems in Category 1 (Internal Propagation) of the third Computational Aeroacoustics (CAA) Work-shop sponsored by NASA Glenn Research Center are solved using the space-time conservation element and solution element (CE/SE) method. The first problem addresses the propagation of sound waves through a nearly choked transonic nozzle. The second one concerns shock-sound interaction in a supersonic nozzle. A quasi one-dimension CE/SE Euler solver for a nonuniform mesh is developed and employed to solve both problems. Numerical solutions are compared with the analytical solution for both problems. It is demonstrated that the CE/SE method is capable of solving aeroacoustic problems with/without shock waves in a simple way. Furthermore, the simple nonreflecting boundary condition used in the CE/SE method which is not based on the characteristic theory works very well. |
| File Size | 908466 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20000033826 |
| Archival Resource Key | ark:/13960/t6qz75s52 |
| Language | English |
| Publisher Date | 2000-03-01 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Sound Waves Numerical Analysis Wave Propagation Supersonic Nozzles Transonic Nozzles Conservation Shock Wave Interaction Nozzles Aeroacoustics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
