| 摘要: |
| 采用三维超声波多普勒测速仪对河道生态修复中种植圈布设前后的工况量测，比较了布设种植圈前后的流速分布、紊动强度和雷诺应力的变化．结果表明，布设种植圈后，纵向流速分布波动明显，相对紊动强度和雷诺应力均略有增加． |
| 关键词: 生态河道 水力特性 种植圈 流速分布 紊动强度 雷诺应力 |
| DOI： |
| 分类号:TV133 |
| 基金项目: |
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| Influences of cropping loops in ecological river on hydraulic behavior of flow |
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ZHU Hong-jun,ZHAO Zhen-xing
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College of Environment and Engineering, Hohai University, Nanjing 210098, China
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| Abstract: |
| By using the three-dimension acoustic Doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and Reynolds stress before and after arrangement of cropping loops are compared. Results show that the longitudinal velocity distribution fluctuates significantly, and that the relative turbulence intensity and Reynolds stress have a little increase. |
| Key words: ecological river hydraulic behavior cropping loop velocity distribution turbulence intensity Reynolds stress |
