| Article title | «Nonlinear response of flow under turbocompressor rotor blade flutter» |
| Authors | Ganiev Rivner Fasilovich, Balakshinoleg Borisovich, Kukharenko Boris Georgievich |
| Abstract | In linear approximation, a flutter is accompanied by acoustic diametral modes of pressure pulsations. In a nonlinear approximation, the second harmonics of flatter frequency appears in the flow velocity field, which reflects in the blade oscillations and shifts their equilibrium. As founded in axial turbo compressor under study, oscillation amplitude of rotor blades under flutter decreases locally in time. However, next the oscillation amplitude of rotor blades begins to increase with evolving flutter. As shown this is the result of a nonlinear flow response on increase of the blade oscillation amplitude. |
| Keywords | navier-stoks equations, reynolds averaging, coherent flow field, blade modes, flutter, nonlinear flow response, axial turbo compressor |
| UDC | 531.3, 533.6, 534.1 |
| Issue | «ENGINEERING AND AUTOMATION PROBLEMS» №3, 2013 |
