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Supersonic unstalled flutter. [aerodynamic loading of thin airfoils induced by cascade motion
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hartmann, M. J. Adamczyk, J. J. Goldstein, M. E. |
| Copyright Year | 1978 |
| Description | Flutter analyses were developed to predict the onset of supersonic unstalled flutter of a cascade of two-dimensional airfoils. The first of these analyzes the onset of supersonic flutter at low levels of aerodynamic loading (i.e., backpressure), while the second examines the occurrence of supersonic flutter at moderate levels of aerodynamic loading. Both of these analyses are based on the linearized unsteady inviscid equations of gas dynamics to model the flow field surrounding the cascade. These analyses are utilized in a parametric study to show the effects of cascade geometry, inlet Mach number, and backpressure on the onset of single and multi degree of freedom unstalled supersonic flutter. Several of the results are correlated against experimental qualitative observation to validate the models. |
| File Size | 7775657 |
| Page Count | 24 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790002829 |
| Archival Resource Key | ark:/13960/t8tb5x671 |
| Language | English |
| Publisher Date | 1978-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Cascade Flow Flow Distribution Pressure Distribution Thin Airfoils Inlet Flow Flutter Analysis Supersonic Flutter Flow Geometry Aerodynamic Loads Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
