超音速せん断層内に形成される縦渦構造に関する数値的研究
| Autor: | Osaka, Jun, Uriuda, Yoshitaka, Nakaya, Shinji, Tsue, Mitsuhiro, Imamura, Osamu, Kono, Michikata |
|---|---|
| Jazyk: | japonština |
| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | 宇宙輸送シンポジウム 平成15年度 = Proceedings of Space Transportation Symposium FY2003. :61-64 |
| Popis: | Streamwise vortex structure formed in a supersonic shear layer was investigated by the use of numerical calculation. To excite three-dimensional vortex structure, distribution of turbulent strength was slightly distorted in spanwise direction. Three kinds of disturbances were introduced into flow field at an inflow plane: dominant disturbance, paring disturbance and white-noise-like disturbance. For all of the cases adopted in this study, fully collapsed solenoidal streamwise vortex structure winding around spanwise vortex core, that is, rib structure was observed. Rotation direction of rib structure was opposite to that of spanwise vortex core. Growth rate of shear layer for the case of white-noise-like disturbance, was larger than that for two-dimensional case. 資料番号: AA0047118016 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|