| タイトル | The effect of heavy rain on an airfoil at high lift |
| 本文（外部サイト） | http://hdl.handle.net/2060/19870010799 |
| 著者（英） | Donaldson, Coleman DUP.; Sullivan, Roger D. |
| 著者所属（英） | Titan Systems, Inc. |
| 発行日 | 1987-03-01 |
| 言語 | eng |
| 内容記述 | No serious studies of the relationship of heavy rain to aircraft safety were made until 1981 when it was suggested that the torrential rain which often occurs at the time of severe wind shear might substantially increase the danger to aircraft operating at slow speeds and high lift in the vicinity of airports. While these data were not published until early 1983, appropriate measures were taken by NASA to study the effect of heavy rain on the lift of wings typical of commercial aircraft. One of the aspects of these tests that seemed confirmed by the data was the existence of a velocity effect on the lift data. The data seemed to indicate that when all the normal non-dimensional aerodynamic parameters were used to sort out the data, the effect of velocity was not accounted for, as it usually is, by the effect of dynamic pressure. Indeed, the measured lift coefficients at high lift indicated a dropoff in lift coefficient for the same free-stream water content as velocity was increased. indicated a drop-off in lift coefficient for the same free-stream water content as velocity was increased. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 87N20232
NAS 1.26:178248
NASA-CR-178248
ARAP-597 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/151405 |
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