| タイトル | Measurement of crossflow vortices, attachment-line flow, and transition using microthin hot films |
| 著者（英） | Saric, W. S.; Mangalam, S. M.; Maddalon, D. V.; Agarwal, N. K. |
| 著者所属（英） | AS&M, Inc.; Arizona State Univ.; NASA Langley Research Center |
| 発行日 | 1990-06-01 |
| 言語 | eng |
| 内容記述 | A flow diagnostic experiment was conducted on a 45-deg swept-wing model using surface-mounted, multielement, microthin, hot-film sensors. The cross-flow vortex spacing, the attachment-line flow characteristics, and the transition region were all determined using an advanced data acquisition and instrumentation system. In addition to the frequencies of traveling waves predicted by linear stability theory, amplified disturbances at much higher frequencies were observed. Simultaneous measurements from sensors located at a number of chord and span locations highlighted the strong three-dimensionality of the boundary-layer flow in the presence of cross-flow vortices. The state of the attachment-line boundary layer was determined using a multielement sensor wrapped around the wing leading edge. The transition region flow characteristics were also identified. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 90A38765
AIAA PAPER 90-1636 |
| 権利 | Copyright |
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