The Parametric Study on the Development of the Large-Scale Coherent Structures in a Mixing Layer
文献类型：期刊论文
| 作者 | Taewon Seo; Yong-Kyoon Eom |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2002 |
| 卷号 | 11期号:1页码:21,30 |
| 关键词 | Large-scale Coherent Structure Nonlinear Interaction Free Shear Layer Mixing Entrainment. |
| 英文摘要 | The theoretical investigation of the role of three-dimensional large-scale coherent structures and their mutual interactions in a developing plane mixing layer subjected to external forcing is presented. Large-scale coherent structures are decomposed into 3 fundamental and 2 subharmoic wave modes. A parametric study is carried out examining effects of a multitude of initial conditions. It is found that the evolution of the forced three-dimensional shear layer and the associated local entrainment can be influenced greatly by the initial amplitudes and phases of the large-scale modes. The presence of three-dimensional modes may have a profound effect on shear layer growth when forced at amplitudes comparable or larger than those of the two-dimensional ones. This effect is more pronounced at low frequency. Nonlinear interactions between the fundamentals and subharmonics indicate that subharmonics of the most amplified frequency of the shear layer are usually produced during the early stages of flow development, while its harmonics are always produced far downstream, regardless of initial conditions. The results of this study provide useful parametric information for the control, through multi-mode forcing, of shear layers in practical applications, aiming at mixing and transport augmentation. |
| 公开日期 | 2013-03-12 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/53530]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Taewon Seo,Yong-Kyoon Eom. The Parametric Study on the Development of the Large-Scale Coherent Structures in a Mixing Layer[J]. JOURNAL OF THERMAL SCIENCE,2002,11(1):21,30. |
| APA | Taewon Seo,&Yong-Kyoon Eom.(2002).The Parametric Study on the Development of the Large-Scale Coherent Structures in a Mixing Layer.JOURNAL OF THERMAL SCIENCE,11(1),21,30. |
| MLA | Taewon Seo,et al."The Parametric Study on the Development of the Large-Scale Coherent Structures in a Mixing Layer".JOURNAL OF THERMAL SCIENCE 11.1(2002):21,30. |
入库方式： OAI收割
来源：工程热物理研究所
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