| タイトル | The development of a CFD potential method for the analysis of tilt-rotors |
| 著者（英） | Bridgeman, John O.; Prichard, Devon; Caradonna, Francis X. |
| 著者所属（英） | NASA Langley Research Center|NASA Ames Research Center |
| 発行日 | 1991-01-01
1991 |
| 言語 | eng |
| 内容記述 | A new CFD potential code, FPX (eXtended Full-Potential), has been developed for application to both helicopters and tilt-rotors. The code solves the unsteady, three-dimensional full potential equation and is an extension of the rotor code, FPR. Both entropy and viscosity corrections are included to enhance the physical modeling capabilities. A number of efficiency related modifications have yielded a factor of two speed-up in the code. An axial flow capability has been added to treat tilt-rotor in forward flight (cruise mode). In order to employ streamwise periodicity and accurately solve for the propagation of acoustic signals in the tip region, an H-H topology has been added to the basic O-H grid system. Computations are performed for the XV-15 Standard and ATB blades at high-speed conditions. Comparisons are made for the blade aerodynamics and the induced fuselage cabin pressure for a range of Mach numbers. Grid generation, wake treatment, and far-field wall treatment are identified as problem areas with recommendations for future research. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 93A29434 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/319401 |
|
