| タイトル | User's manual for UCAP: Unified Counter-Rotation Aero-Acoustics Program |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930017959 |
| 著者（英） | Mccolgan, C. J.; Culver, E. M. |
| 著者所属（英） | United Technologies Corp. |
| 発行日 | 1993-04-01 |
| 言語 | eng |
| 内容記述 | This is the user's manual for the Unified Counter-rotation Aeroacoustics Program (UCAP), the counter-rotation derivative of the UAAP (Unified Aero-Acoustic Program). The purpose of this program is to predict steady and unsteady air loading on the blades and the noise produced by a counter-rotation Prop-Fan. The aerodynamic method is based on linear potential theory with corrections for nonlinearity associated with axial flux induction, vortex lift on the blades, and rotor-to-rotor interference. The theory for acoustics and the theory for individual blade loading and wakes are derived in Unified Aeroacoustics Analysis for High Speed Turboprop Aerodynamics and Noise, Volume 1 (NASA CR-4329). This user's manual also includes a brief explanation of the theory used for the modelling of counter-rotation. |
| NASA分類 | ACOUSTICS |
| レポートNO | 93N27148
NASA-CR-191034
NAS 1.26:191034 |
| 権利 | No Copyright |
