| 斜向自由剪切层流场拟序和湍动特性的实验研究 |
| |
| 引用本文： | 沈利平 林建忠. 斜向自由剪切层流场拟序和湍动特性的实验研究[J]. 水动力学研究与进展(A辑), 1995, 0(1): 77-82 |
| |
| 作者姓名： | 沈利平 林建忠 |
| |
| 作者单位： | 浙江大学力学系，浙江大学力学系 杭州 310027，杭州 310027 |
| |
| 摘 要： | 本文用Ｘ型探头热线风速仪测量了斜向自由剪切层气流场，首次对该流场的测量数据进行能谱、相关维数、相关熵的计算，说明该流场存在三维涡结构，这些结构在距出口一定的位置上形成，具有螺旋状，不存在结构间配对合并等作用，因而剪切层厚度增长较慢。
|
| 关 键 词： | 剪切层 湍流 流场 实验技术 |
The Research on the Property of Coherent and Turbulence for the Free Cross Mixing Layer |
| |
| Shen Li-ping Lin Jian-zhong. The Research on the Property of Coherent and Turbulence for the Free Cross Mixing Layer[J]. Chinese Journal of Hydrodynamics, 1995, 0(1): 77-82 |
| |
| Authors: | Shen Li-ping Lin Jian-zhong |
| |
| Abstract: | The free cross mixing layer flow is measured by hot - wire technique. Based on the sampling data, the probability density distribution, correlation dimentsion, correlation entropy are calculated. The results show that there exist three-dimension small coherent structures in the flow, these structures form in the location with some distance from exit and have no significant effects on the mixing layer. |
| |
| Keywords: | free cross mixing layer turbulence measurement by hotwire correlation dimension correlation entropy |
| 本文献已被 CNKI 维普 等数据库收录！ |
