| タイトル | Boundary-layer stability analysis of Langley Research Center 8-foot LFC experimental data |
| 本文（外部サイト） | http://hdl.handle.net/2060/19900003216 |
| 著者（英） | Berry, Scott; Brooks, Cuyler W., Jr.; Harris, Charles D.; Dagenhart, J. Ray |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1987-12-01 |
| 言語 | eng |
| 内容記述 | An analytical study of linear-amplifying instabilities of a laminar boundary layer as found in the experimental data of the LaRC/8-foot laminar-flow control (LFC) experiment was completed and the results are presented. The LFC airfoil used for this experiment was a swept, supercritical design which removed suction air through spanwise slots. The amplification of small disturbances by linear processes on a swept surface such as this can be due to either Tollmien-Schlichting (TS) and/or crossflow (CF) mechanisms. This study consists of the examination of these two instabilities by both the commonly used incompressible (SALLY and MARIA) analysis and the more involved compressible (COSAL) analysis. A wide range of experimental test conditions with variations in Mach number, Reynolds number, and suction distributions were available for this study. Experimentally determined transition locations were found from thin-film techniques and were used to correlate the n-factors at transition for the range of test cases. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 90N12532 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/139883 |
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