| タイトル | The upper-branch stability of compressible boundary layer flows |
| 本文（外部サイト） | http://hdl.handle.net/2060/19890019377 |
| 著者（英） | Cole, J. W.; Gajjar, J. S. B. |
| 著者所属（英） | Exeter Univ.|NASA Lewis Research Center |
| 発行日 | 1989-08-01 |
| 言語 | eng |
| 内容記述 | The upper-branch linear and nonlinear stability of compressible boundary layer flows is studied using the approach of Smith and Bodonyi (1982) for a similar incompressible problem. Both pressure gradient boundary layers and Blasius flow are considered with and without heat transfer, and the neutral eigenrelations incorporating compressibility effects are obtained explicitly. The compressible nonlinear viscous critical layer equations are derived and solved numerically and the results indicate some solutions with positive phase shift across the critical layer. Various limiting cases are investigated including the case of much larger disturbance amplitudes and this indicates the structure for the strongly nonlinear critical layer of the Benney-Bergeon (1969) type. It is also shown how a match with the inviscid neutral inflexional modes arising from the generalized inflexion point criterion, is achieved. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 89N28748
ICOMP-89-15
NASA-TM-102128
NAS 1.15:102128
E-4916 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/140694 |
