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An assessment of open rotor noise prediction tools
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Envia, Ed |
| Copyright Year | 2012 |
| Description | Assess the current capability for predicting the aerodynamic and acoustic performance of open rotors. The testbed is a GE blade set called F31/A31 for which significant amount of aerodynamic and acoustic data was acquired in model scale tests. F31/A31 is a vintage 1990s design with a 12-bladed front rotor and a 10-bladed aft rotor. This blade set was tested in both low-speed regime (representative of approach and takeoff conditions) and high-speed regime (representative of climb and cruise conditions). Uninstalled as well as installed configurations were tested. The focus of this interim presentation is on a subset of the low-speed tests for which the tip speed was varied, but the blade setting angles and tunnel Mach number were held fixed. |
| File Size | 8085905 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150009578 |
| Archival Resource Key | ark:/13960/t4jm78705 |
| Language | English |
| Publisher Date | 2012-10-23 |
| Access Restriction | Open |
| Subject Keyword | Acoustics Aerodynamics Noise Propagation Sound Waves Computational Fluid Dynamics Scale Models Low Speed Rotors Rotor Aerodynamics Aerodynamic Noise Acoustic Frequencies Test Stands Unsteady Aerodynamics Noise Prediction Aircraft Wind Tunnel Tests Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
