| タイトル | VTOL in-ground effect flows for closely spaced jets |
| 著者（英） | Jenkins, R. C.; Hill, W. G., Jr.; Migdal, D.; Siclari, M. J. |
| 著者所属（英） | Grumman Aerospace Corp. |
| 発行日 | 1980-08-01 |
| 言語 | eng |
| 内容記述 | The interaction of two vertically impinging incompressible jets is studied through the invention of physical flow models that approximate the behavior of colliding wall jets as the incident jets are brought closer together. The mechanism for upwash formation is studied and momentum models for the upwash sheet are postulated. An approximate method for computing the ground isobar pattern of jet and upwash deflection zones is presented and compared with test data. A method for computing the upwash impingement force in the absence of secondary induced flow effects is also presented and reasonably good agreement is achieved with experimental data for cylindrical fuselage shapes of circular and rectangular cross section. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 80A46693
AIAA PAPER 80-1880 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/420666 |
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