| タイトル | High speed propeller acoustics and aerodynamics - A boundary element approach |
| 著者（英） | Dunn, M. H.; Farassat, F.; Myers, M. K. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1989-10-01 |
| 言語 | eng |
| 内容記述 | The Boundary Element Method (BEM) is applied in this paper to the problems of acoustics and aerodynamics of high speed propellers. The underlying theory is described based on the linearized Ffowcs Williams-Hawkings equation. The surface pressure on the blade is assumed unknown in the aerodynamic problem. It is obtained by solving a singular integral equation. The acoustic problem is then solved by moving the field point inside the fluid medium and evaluating some surface and line integrals. Thus the BEM provides a powerful technique in calculation of high speed propeller aerodynamics and acoustics. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 93A46804 |
| 権利 | Copyright |
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