| タイトル | Coherent structures: Comments on mechanisms |
| 本文（外部サイト） | http://hdl.handle.net/2060/19880013734 |
| 著者（英） | Hunt, J. C. R. |
| 著者所属（英） | Cambridge Univ. |
| 発行日 | 1987-12-01 |
| 言語 | eng |
| 内容記述 | There is now overwhelming evidence that in most turbulent flows there exist regions moving with the flow where the velocity and vorticity have a characteristic structure. These regions are called coherent structures because within them the large-scale distributions of velocity and/or vorticity remain coherent even as these structures move through the flow and interact with other structures. Since the flow enters and leaves the bounding surfaces of these structures, a useful definition for coherent structures is that they are open volumes with distinctive large-scale vorticity distributions. Possible fruitful directions for the study of the dynamics of coherent structures are suggested. Most coherent structures research to data was concentrated on measurement and kinematical analysis; there is now a welcome move to examine the dynamics of coherent structures, by a variety of different methods. A few of them will be described. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 88N23118 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/146361 |
