タイトル | Unsteady features of jets in lift and cruise modes for VTOL aircraft |
著者(英) | Saripalli, K. R.; Kegelman, J. T.; Kibens, V.; Wlezien, R. W. |
著者所属(英) | McDonnell-Douglas Research Labs. |
発行日 | 1988-01-01 |
言語 | eng |
内容記述 | Experiments were performed to simulate jet plume effects associated with VTOL aircraft in takeoff and cruise modes. A water facility was used to investigate the influence of inclination angle and separation distance on the three-dimensional fountain flowfield generated by two impinging jets operating at a jet Reynolds number of 250,000. Substantial differences in the flow features were observed for different spacings between the jets. Plume effects in cruise mode were simulated by a supersonic unheated jet parallel to a wall. Variation of the distance between the wall and the edge of the plume is shown to have a major controlling effect on the supersonic screech instability. |
NASA分類 | AERODYNAMICS |
レポートNO | 88A37220 SAE PAPER 872359 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/370851 |