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Acoustic loads on an externally blown flap system due to impingement of a tf-34 jet engine exhaust
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schoenster, J. A. |
| Copyright Year | 1974 |
| Description | One of the powered lift systems currently being considered for use on STOL vehicles obtains additional lift by impinging the flow of a jet exhaust on the flaps and turning it downward. This direct impingement subjects large areas of the flap to the fluctuating pressure loads of the turbulent jet flow; these loads have the potential for causing high vibration levels and sonic fatigue failures. A test was conducted on a full-scale mockup of an externally blown flap system, which consisted of a TF-34 engine and a section of a wing having a triple-slotted flap. Data were obtained and evaluated on the fluctuating pressures on the flaps and it is the purpose of this paper to present some of the results describing the loads. |
| File Size | 1359735 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740012538 |
| Archival Resource Key | ark:/13960/t86h9b843 |
| Language | English |
| Publisher Date | 1974-04-10 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Externally Blown Flaps Aerodynamic Configurations Jet Impingement Tf-34 Engine Pressure Distribution Short Takeoff Aircraft Lift Augmentation Aerodynamic Loads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
