| Autor: |
Reed, Helen, Saric, William |
| Zdroj: |
Journal of Engineering Mathematics; Feb2014, Vol. 84 Issue 1, p99-110, 12p |
| Abstrakt: |
The attachment-line boundary layer on a swept wing can be subject to either an instability or contamination by wing-root turbulence. A model of the attachment-line boundary layer is first developed including compressibility and wall heating in a Falkner-Skan-Cooke class of three-dimensional boundary layers with a Hartree parameter of 1.0. This is verified with other formulations in the literature. For cases otherwise subcritical to either contamination or instability, the destabilizing effect of leading-edge heating under a variety of sweep angles and flight conditions is demonstrated. The results correlate with the attachment-line Reynolds number. Because the required heating levels are reasonable and achievable to trip the flow over the wing to turbulent, one possible application of this work is in the establishment of a baseline turbulent flow (on demand) for the calibration of a laminar-flow-control health-monitoring system. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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